Minor Fixes

This fixes the scoreboard and the missing alien models but the aliens don't have an animation set and are stuck in a T-Pose. You may want to consider using/recommending http://steamcommunity.com/sharedfiles/filedetails/?id=130746333&searchtext=Vortigaunt or http://steamcommunity.com/sharedfiles/filedetails/?id=234085020&searchtext=Vortigaunt