While fighting take your time to look for people.
Try to remember where things are in a level.
Use yours and the other persons direction map to help you.
Once you find your enemy, line up so he cant see you and
start to fire!
Use the other sections of this help file to your aid. Ex:
Try to find the hidden weapon.
The faster you shoot, the more damage it does on the
Press 'F1' anytime during the game for further help!