Level Skip - After getting into the Pelican, fly all the way to the final area of the level(it is unmarked) and there is a hole in the door that can be jetpacked through to skip to the end of the level. Tutorial
Parallel Pillar Launch - Top of the first lift, jump somewhat parallel to the scripted pillar and it will launch you to the final area, skipping all fights. Quite a lot of luck on this trick but a reference point can be used to get the trick somewhat consistent, takes lots of practice. Tutorial
Shutdown control room OOB - Using the banshee to get OOB by the door after that you can explore some areas no way found to the end trigger.