Portals

Portals

3Ds Max 8

http://files.h2vista.net/software/3dsmax/

Gmax

http://www.turbosquid.com/gmax

(HEK) Halo Editing Kit for Halo CE

http://hce.halomaps.org/index.cfm?fid=411

Halo Custom Edition Game [English]

http://hce.halomaps.org/index.cfm?fid=410