Team Fortress: Invasion mod for Half-Life 2

Background Information

This project is based off the build by Hogsy, with his permission

Team Fortress 2: Invasion is a cancelled version of TF2 that was in development in between 2001 to 2002. It went under many different design phases to see what stuck, such as Space TF2, Roman-inspired Humans vs Aliens, and finally, War of the Worlds. The War of the Worlds themed game was the last design phase for the cancelled, RTS-like, Team Fortress 2.

It was never publicly revealed or shown, and was only revealed via two leaks. The only thing that ever resurfaced was concept art, the source code, and two models included with a leaked copy of CS:S.

Gameplay

The game plays much differently then any other Team Fortress game, the objective was for one team to gain the most resources before the round ends. Resources were a mineral called Jojierium, which was used to build objects and buildings for your team.

You could also spawn vehicles using a vehicle bay, among these vehicles was a Motorcycle, Wagon, Battering ram, Siege tower, and Alien-exclusive Tripods referred too as Striders or Walkers. Buildable objects include Sentry guns, Powerpack, Buff Station, Healing Station, Spawn Station, and the Resource Pump. The Powerpack was used as a power source for objects and could power up to four objects at once.

You could also capture Control Zones within a map, which would become your territory to use and build in. There were also environmental hazards, such as Meteors striking the map, Rockfalls, and lasers. Each round was split up into three acts, which would each last an amount of time set by the map the game was using.

Classes

Recon
Could unlock radar scanning technology so Recons could detect enemies on the minimap within a limited range around them. Armed with dual semi-automatic pistols and a sticky grenade. Also had a jetpack that could be upgraded. Very fast and quick.

Commando
Could kick enemies down to the ground when close to them, armed with a Burst Rifle and a Power Shield. Could use an Adrenalin rush ability which would make players faster and more resistant to bullets within a limited range around the Commando. Would let out a battle cry upon activating it.

Defender
Armed with a Minigun. Could build sentry guns and has limpet mines. Slow but effective for plowing down enemies. Also has a power shield.

Pyro
Armed with a Flamethrower and a Gas can, could light gas on fire to create traps and would spread through gas. Also has a Grenade Launcher.

Escort
Has a huge shield around him that other team players could enter to gain cover. Projectile tracking could be toggled. Armed with a Burst Rifle.

Sniper
Armed with a Sniper Rifle. Could cloak when standing still as well. Good for quickly and instantly killing players in the way if you're skilled enough.

Infiltrator
Armed with a knife and a pistol. Could cloak and disguise as enemy players and could gain corpse-consuming technology which would allow you to play dead as enemy corpses.

Support/Suppression
An alternative to the Defender that was meant to push back enemy players and keep them out of the way, or suppress them. Armed with a Plasma Rifle. Good for keeping enemy players out at the cost of having low health.

Medic
Armed with a Combat Shotgun and a Repair gun, this class can heal buildings and teammates. He can build an Autorepair (no code associated only mentioned in it), and a Self-heal.

Sapper/Technician
Could build Sentry Guns, Buff Station, and an EMP Generator. Armed with a Drainbeam, a weapon that is the complete opposite of the Repair gun. It drains enemy health and charges an EMP that would be sent to the player you were draining. Also armed with Rallyflags, a device that would emit Adrenalin toward nearby players that would increase their health and damage resistance within a limited range.

Buildings

Powerpack
Pretty much every device needs this to function as it serves as a power source. The only exception is the Resource Pump
and the EMP Generator, which both do not need power to function.

Resupply
Could resupply ammunition for anybody near it, basically a dispenser. Could be placed on walls and on the ground.

Buff Station
Applied Adrenalin to whoever is connected to it. Could house a max of 4 people using it at the same time.
If you walked out of range, the effects of the Buff Station would stop.

Dragon's Teeth
Could stop vehicles dead in their tracks. Destroyable, but good for blocking pathways for vehicles.

EMP Generator
Would search for nearby enemies to EMP. Destroyable and does not need a power source

Resource Pump
When placed in empty resource zones, you could harvest resources from the ground within the resource zone.
It would harvest them until the resources run out within the area. The amount of resources within a resource zone
is set by the map.

Sandbag Bunker
Good for keeping cover and sometimes popping up to fire at enemies. Destroyable, but good for needing cover then and there right in
the battlefield.

Selfheal
A device that could heal people while the medic is away. Could house a max of 4 people using it. Built exclusively by medic.

Vehicle Boost
An object that could boost vehicles so they could gain speed quickly. Could be used to either help get teammates to places faster
or to make enemy vehicles go fast in the wrong place so they would crash into something

Barbed Wire
Used for keeping enemies out of a certain area. When two were placed alongside each other, it would generate a deadly laser beam in between them.

Bunker
Good for keeping cover behind something that doesn't break easily. Basically a bigger, stronger version of the Sandbag bunker, but not as small or nimble.

Respawn Station
An object that you or your teammates can spawn in.

Manned Missile Launcher
A Missile Launcher that is stationary. Expensive but is effective against enemies. Also good for taking down Walkers.

Manned Plasma Gun
A Plasma Gun that is stationary, good for defending your territory.

Sentry Gun
A Sentry Gun that has 3 types; Plasma, Rocket, and a normal Sentry.

Vehicles

Walker
Much like the Tripods of War of the Worlds, these vehicles were alien exclusive, and were tall and lanky. They would loom over the battlefield and shoot laser beams at a slow rate.
An expensive vehicle to buy for your team, but it will be worth it. A Walker comes in two variants; Strider and Mini-Strider. Mini is cheaper and less effective on the battlefield as the bigger Strider, and is not as strong.

Wagon
A vehicle used for transporting players and equipment in small amounts. Strong and durable.

Siege Tower
A portable tower. Could be used to get over an enemy wall or to transport snipers. Big and tall, but a little weak.

Motorcycle
A one-person vehicle that's fast, but only carries one person at a time. Small.

Mortar
A Vehicle more for firing mortars then to transport players. The closer you are to enemy territory, the more effective it is.

Flatbed
A long truck that can be used to carry and transport objects to one place or another.

Tank
Slow, but packs a punch. Good for keeping enemies out of a place you don't want them in, or for getting them out of places.

Team

Our development team consists of:

Chous - Mapper

Magnus - Composer

Northern3D - Modeler

MarteenS11 - Programmer, Mapper

HectorWiz - Environmental Artist/Modeler

NextWizard - Owner/Programmer/Site Designer

Sayiangod - Conceptual Artist

Links

Discord