Made a very casual tutorial/guide for Any% 1.0 (most things still work on newer patches so don't worry). Going through beginner strats and so called "IL strats".

Since when I recorded this there has been found a new IL strat for Under the Radar: https://www.speedrun.com/cosanostra/run/yo6v3ody

Also Mr_Mary found a very useful backup strat. When you die, wait till enemies stop shooting, press escape. You'll be able to continue playing from the place you died at.

One thing I forgot to mention is a trick used during loading screens. You can start aligning the direction you look before the level starts (good examples are Deliver Us From Evil, The Family, Judas).