mouse, movement - W, A, S, D , jump - space bar, reload the weapon - R, choose team - M, list of players - Tab, crouch - Ctrl
Red Crucible 2 is very similar to war simulators like Battlefield. You can play a singleplayer (training) or a multiplayer with a variety of war machines.
In addition, you can choose servers according to the continent. The best is of course to play in your continent, where the pings are quite small. And one more piece of advice for you: if you have full HD, turn off the highest quality or you could experience some problems with the graphics.