Fix missions

[CamoRF]

• [ ] Cutscene after going down elevator threw me back to the main menu, was able to continue after reloading save
• [ ] Cutscene after destroying the third generator clearing the path for the LAV in second DLC mission throws you back to the menu
• [ ] Cutscene after falling down a hole in the first alien area after the radio static throws you back to the menu
• [ ] Cutscene after entering the cargobay and defeating the walker, you press E to enter the terrformer and it throws you back to the main menu
• [ ] Can't destroy red faction generator in path to war
• [ ] Fix FPS drops with weapons that cause large explosions?
• [ ] Apply tweaks to DLC