The Marines.zip file you have requested: Maps Levels Missions / Demo Maps / Halo Demo/Trial Marines.zip - 7.08mb is not available. Perhaps try browsing all files for the game Halo: Combat Evolved and upload any files you want to share or are missing. This is the only information we could locate:
Marines Created by duffman2113System Requirements for MacMac OS X 10.2.8 or laterMac OS X 10.3 or higher recommended56MB of RAM (512MB recommended)32MB AGP video card All players play as marines. Players can't use anything marines can't normally use(rocket launcher, fuel rod gun, flamethrower, banshee). Banshee isn't on map. Rocketlauncher is replaced with sniper rifle. Fuel rod gun is replaced with plasma rifle.