HaloMods "Classic" Read-only Archive

yeah i figured it out already but do u know how to get it so i can mod on terminal. I have the map file on my computer but whenever i try to run it in multiplayer it says failed to load the map. I dont know what the problem is.

I dont know how to shoot elites and spartans out of a plasma pistol because i keep getting exceptions when i try. If u know could u explain in a little detail