3. Basic in-game controls
3.1. Every involved squad begins the mission at its insertion point, a smaller room with reinforced walls. This area has no other "special attributes", except that you have to return the datadisc here in "Get data" missions. Your units are automatically deployed following rank order, the two top ranking soldiers standing in front and the others behind them.
3.2. The game interface consists of two main areas, the tactical view (the actual game area), and the A.T.A.C. (Advanced Tactical Assistance Computer) on the right, where you can access character data, inventory, combat options, the minimap, etc. When the mission begins, you have no units selected, and thus the A.T.A.C. shows general information about the mission: objective status, deadline, and such.
3.3. To perform any action, you have to select a unit. This is done by either left-clicking on a unit on the tactical view, or clicking its portrait at the top right corner. You may also use the keys 1-4 or F1-F4, or TAB to cycle through them. You can switch to any of your units at any time, but there's always only one unit selected. The A.T.A.C. area below the portraits always shows info about and options for the currently selected unit.
3.4. You can move your selected unit by left-clicking on the desired target location on the tactical view. Every grid of movement costs 1 Action Point. Available Action Points are displayed as a column of green lights on the right, and also as green numbers on all four unit portraits. If you click a grid adjacent to your unit, it will move instantly, otherwise the first click will only display a designated path, which you can confirm by clicking again on the target (marked by a cross by then). A number there shows how many Action Points will remain after the movement.
3.5. Units will always face the last direction they were moving to. To change this, right-click anywhere in the direction you want your unit to face, or use the numeric keyboard numbers, where "5" represents your unit. Turning does not cost any APs. Your unit's facing only affects its line of sight, not its defense or armor in any way.
3.6. To interact with a map element (e.g. open a door, pick up ammo from an ammo crate, kerosene from a barrel, close a sewer door, etc.), simply left-click on it. If you're not standing next to it, a path will be designated just like when you want to move. To perform interaction, you need the sufficient Action Points! A hovering tooltip will always tell you how much APs you need, but only when you're next to the object. As you hover the mouse over map elements, the info bar will also appear at the bottom, showing data about the object or unit.
3.7. To access a unit's skills and records, click the "Char." button on the A.T.A.C. below the portraits. Close it by clicking the button again.
3.8. To access a unit's inventory, click the image of the current weapon. Close the inventory by clicking it again. On how to use the inventory, keep your eyes open for our upcoming article!
3.9. Scroll the view by moving the mouse cursor to the screen's edges, by pressing one of the four arrow keys on the keyboard, or by clicking anywhere on the minimap to quickly warp the view to that location.
3.10. You can move various map elements (crates, barrels, machines) by standing next to them, facing them, and clicking either of the "Push" or "Pull" buttons that will replace "Door" and "Scan" temporarily. If the way is blocked, you cannot move the object, of course.
3.11. When all your units are out of Action Points, or you just want to end the turn for any other reason, click the "End turn" button (or press ENTER).
3.12. Invoke the In-game Menu by clicking the "Menu" button on the minimap's upper panel, or by pressing [ESC]. Here you can save the game or load one, access miscellaneous A.T.A.C. options, or exit to the Main Menu.
4.1. Combat is generally performed by selecting (activating) an attack mode, and then a target in the tactical view. Every weapon has at least one weapon mode, and each weapon mode has at least one attack mode. Attack modes tied to a specific weapon mode share ammo type and Critical Threshold. All other properties of attack modes may vary. The A.T.A.C. always shows the most vital information.
4.2. Below the icon of the current weapon, there are three main areas, showing data. The top one displays info about the current weapon mode, and damage info about the current attack mode. If the weapon has more than one weapon modes, you can switch mode by either left or right-clicking anywhere in the top display area, or by pressing [CTRL]. On the image above, the rifle has only one weapon mode, "Shoot", that's why you don't see a >>> icon in the top right corner.
4.3. The middle display area shows the currently selected attack mode (in the picture, "Full burst"). A >>> icon in the top right corner indicates that there are more available attack modes. You can switch attack mode by left-clicking anywhere in the area, or by pressing [SHIFT]. But, having an attack mode as current or selected doesn't automatically mean you're ready to attack. You have to ready the weapon. This can be done very simply, by right-clicking in the area or by pressing [SPACE]. When the attack mode is thus activated, the area will have a green background and on the tactical view, the line of fire/target indicators will be visible (see picture).
4.4. When the attack mode is active, hover the cursor above any valid target marked by a reddish overlay on the tactical view to see basic targeting info: the status of the target and hit probability. A purple area will also appear to show the damage area (note that this area info will not take natural covers into account, e.g. if a target is behind a wall, it won't be affected). If you're ready to attack, left-click on the target, and the attack will commence.
4.5. You will either hit or miss, based on many factors, see the Combat section for a lot of details. If you miss with a ranged attack, a random nearby unit or object may get hit instead. If you hit, you may damage the target. The damage done will be displayed in floating messages and will be registered in the combat log. Most attacks will do damage to Health if they get through the armor (red text). Armor piercing attacks may also degrade the target's armor (yellow), while attacks with a high impact force may knock back the target and/or cause Action Points loss (for the next turn; green). Many attacks will also cause tranquilization (magenta).
4.6. Most attack modes use ammo. If there's not enough ammo left in the clip, you'll have to reload the weapon in order to use that attack mode. This can be either done by pressing [R], by selecting the "Reload" option in the third (bottom) display area (instead of Defense mode) and activating it, by opening the inventory and placing the ammo in the current weapon, or--for your ease!--by simply re-activating the attack mode, which will automatically reload the weapon if there's enough ammo AND you have enough Action Points (the attack AP cost in this case will be displayed in yellow and will include the reload AP cost).
4.7. As different attack modes use different amount of ammo, keep in mind that any damage bonus a special ammo may have is taken into account per ammo used by that attack mode! So attacks with a high ammo consumption benefit more!
4.8. While the attack mode is active, you may also move--one step at a time--by clicking on the grids marked with the blueish arrow icons. Selecting a farther movement destination will deactivate the attack mode.
4.9. Deactive the current attack mode exactly the same way it has been activated. While it is active, you can still switch attack mode without deactivating the weapon.
4.10. One last key element to good tactics is the use of Defense mode. It means reserving the current Action Points for either blocking attacks (melee defense mode) in the enemy's turn, or for taking "opportunity shots" when the enemy moves (ranged defense mode). Defense mode always lasts until the next turn. To enter defense mode, a unit must have at least 5 Action Points and a Morale of 20! For melee weapons, any surplus APs will mean more Defense Rating. For ranged weapons, the amount of Action Points reserved for defense mode will be equal to the APs that can be spent on opportunity attacks, e.g. entering defense mode with 10 APs and an attack mode of 3 APs will mean that the unit can fire three times during it's defense. It is REALLY STRONGLY ADVISED to always have a unit with a melee capable weapon and use it in melee defense mode to block / control alien swarm attempts, protecting the other units. Activate defense mode by right-clicking the bottom data area or by pressing [D].
5. Special actions
5.1. Unloading a weapon. Sometimes you may want/need to completely unload your weapon (before selling, for example). You can either choose the "Unload" option in the third ATAC display area, or select the weapon in your inventory and then click the "Unload" button. Unloading requires loading/2 APs.
5.2. Every unit has a built-in scanner that can be used to reveal nearby, otherwise unseen units (and if Fog of War is enabled, structures) in a 5-grid base radius. This costs 3 Action Points and can be performed anytime by pressing the "Scan" button on the main ATAC panel or the key [S]. The scanner will not work if you're facing a moveable object. Beware, scan-revealing alien eggs will "disturb" them and start their hatching process. Use a scanner booster to enhance the range of the scanner and get rid of this "side-effect". Cloaked enemy units (in PvP) can also only be revealed by a boosted scanner.
5.3. Many map elements, such as crates, barrels, vending machines and databanks can be moved--either pulled or pushed--if there's enough space. To move an object, you must face it. Then the "Pull" and "Push" buttons will replace "Lights" and "Scan" on the ATAC. Moving an object costs 3 Action Points, with the exception of pushing it while running, which may be 2 or 1 depending on unit speed. These objects can be used to build defenses, block passages, build better covers.
5.4. Some objects can be interacted with: vending machines, special crates, barrels, databanks, doorlocks, switches, sewer doors, etc. This is done by simply left-clicking on them as a movement destination. You'll need the required amount of APs, of course.
5.5. Items in your inventory also often need to be used/activated to fulfil their purpose. Medikits, grenades, armor mods, weapon upgrades and many other special stuff need this attention.
5.6. You can toggle the unit's headlights on/off by pressing the "Lights" button on ATAC or the key [L]. This can be mostly useful in PvP to not give away your position.
5.7. You can harvest crafting materials by destroying crates (standard crates may drop screws, blue crates may also drop screwdrivers and wire cutters), crystals, and salvaging databanks. The model RD-1 Rubber Ducky is also a very important crafting material, it can be obtained from equipment crates by luck and by killing zhe Wunderwurmz (apparently, they're attracted to the duckies' cute appearance and tend to chew on them). Crafting materials can be then used to craft special equipment and prototype weapons off-budget, and is thus very important if you want to move onto higher difficulty levels (and in the Campaign, of course).
5.8. Doorlocks often control the entrance of special rooms. Unless you break through the door or have a circuit cracker in your inventory, you'll have to manually override these in a logical mini-game. An article fully covering this process is coming soon!
Thank you for your attention! Don't forget, USC Beta is coming in November!