The following update brings you the demo of Red Alliance! It is built on Unity 4.5.5, so it does not have latest Unity's graphics, or GUI. In next update I will switch to Unity 5 and update the overall look of the game in terms of graphics.
The build features first 2 campaign levels and a co-op mode that is in early alpha at the moment. It is highly recommended to play the game in Singleplayer mode first, so you get an idea of what to expect of the game before trying in co-op. The game does not have auto-save yet, so it is advised to save regularly by pressing F6 or by pause menu.
The console comands have been extended, weapon shader has been improved. New voice acting has been implemented in the levels of prison. Added sniper AIs and applied various AI tweaks. The game takes about 30-60 minutes complete depending on player's skill. The game is not fully optimized, so if the game feels laggy, it is advised to lower settings through the settings menu in game.
I hope you guys will have nice time playing the demo :) I would love to see some gameplay/walkthrough of it on YouTube! Please share this demo with as many people as you know, let's spread the word about the demo being finally released! :)