kill - the lights

pull the trigger - on a decision

rally the troups - for a game

Deadline - over this line and your dead - even if you´re not

dodging a bullet - for evasion of a possible difficult situation

biting a bullet - to make a difficult decision which consequences will hurt.

sweating bullets - be nervous a lot

I realize most of those are American English examples - hmm, hopefully they get the Wild West out of their heads soon;-)