Changes in this update are:
- Fixed Apache not firing its guns when attacking
- Fixed baby headcrabs not pitch shifting their sounds correctly
- Fixed Vortigaunt pain and die sounds not playing
- Fixed crossbow bolt not appearing in the world correctly
- Fixed missing suit in c1a0c
- Fixed missing music in c2a1
- Fixed incorrect start items in c2a4
- Fixed incorrect start items in c2a4d
- Fixed incorrect start map for Lambda Core (changed from c3a2 to c3a2e)
- Fixed missing music in c4a1
- Fixed dialogue in c4a1, c4a1b, c4a1c, c4a1f
- Fixed missing sounds in c4a2
- Fixed incorrect sounds and effects in c4a3
- Removed world texture changes from HD addon, making it more closely match the original Half-Life HD addon pack
