Ive been playing the singleplayer, and i love it. But theres a few glitches/bugs. Sometimes i cant melee. theres nothing wrong with my mouse or keyboard. the option just stops working. and theres sometimes graphical glitches when u grab someone. And when u grab an alien and throw him u dont get points? i dunno if that how its ment to be. Am new to the forums. I also wanted to say the game is excellent. amazing graphic and no lag what so ever. and i dont have the best pc ither.