New features in Demo 1.3:
Direct 3D support
Internet multiplayer available
New weapon sounds (almost all weapons have got their own sound based on recordings of the real thing)
Improved (but still not final) character animations
Improved RPG setup (stamina problem sorted)
Improved physics
Improved weapons accuracy and efficiency
All weapons are included, including shotguns, grenade launchers, grenades and special equipment
Improved User Interface (more screens, including the Exit from game confirmation)
Game is more stable