Monolith just released the Aliens vs. Predator 2 mod tools today and it includes: DEdit, the AvP2 world editor (also contains texture and sprite utilities). ModelEdit, the AvP2 model editor. LithRez, a command-line program for packing and unpacking AvP2. REZ (Resource) files. Softimage 3.7 exporters. Maya and 3d Studio Max Exporters and much more. Grab this 8.7 Mb file over at fileplanet.