The accuracy of snipper shot is highly depends on "accuracy" parameter of the selected soilder.

Guard turret won't notice you after the camera is destroyed. Camera hangs above turret (indoor level).

Recoil and accuracy change when you sit and prone.

Suite power can be restored with help of rechargers. Rechargers can be found on the second floor of the base on open-space level and in the 8-like corridor on the indoor level.

Missiles can be guided - just mark the target with "Use" key (default - "Enter").

Shooting short threads with submachine gun gives better accuracy.

You can see what your team member see in multiplayer game. Enable HUD camera with "HUD mode" key (default
- "/"). Cycle througth your team members with "Map size/Cycle camera" keys (default - "][","]").

Green syringe add 10% to health.

Always search the dead bodies with "Use" key (Default - "Enter"). Armament and syringes can be found there.

You can come to sniper on the tower very close, if you use bushes and trees as a cover. Just keep a tree on the sight line as you move.

Monsters can hear the machine gun in much longer distance than sniper gun.