Check out these cool maps of the multiplayer levels on Halo.  

You can use these to plan your tactics for each level and find the best hiding places.  All of these maps have been obtained from other websites.  There is one CHIRON TL34 map which I edited myself to show exactly where all the weapons and upgrades are but as it was originally a Corel draw image it have come out less detailed when I converted it to JPEG format.  Feel free to print any of these maps of and draw all over them with your amazing tactics.

BATTLE CREEK

SIDEWINDER

DAMNATION

RAT RACE

PRISONER

HANG 'EM HIGH

CHILL OUT

DERELICT

BOARDING ACTION

BLOOD GULCH

WIZARD

CHIRON TL34

LONGEST