While OHKO has its own forum, nobody would find this thread there.

I could not be bothered to test these fully.

Dupe Saint Mark's Bistro (x2) so that enemies get stuck inside each other. The "getting stuck" part is not 100% consistent and I have not done it a lot, so it could be anywhere from 10-90%. Test it. Better test it with the next strat already done (BP x7). Home In the Hills is unlocked.

Black Project x7 Get 6 Quarry instances (if you have duped Explosive Situation, you only need to start it twice since you get 2 instances each time you enter the mission trigger because you get 2 Quarry starter threads). Now start Black Project. Instead of enemies, you get a bunch of meat stuck inside each other. Saint Mark's is unlocked even though you complete more desert missions than necessary. I recommend saving/loading afterwards since it is free in this unoptimized category and not everything is cleaned up (mission cleanup list gets full), I don't know about weird side effects.

All Missions

• Most likely unnecessary: You can dupe Flight School to get max wanted level 0 until Meat Business

Architectural Espionage I remember that this is rather precise. Not super hard but if you are lazy, just copy where exactly I stand at the exit, when I trigger the satchels, and when I jump:

• You can still do Black Project x7, but you need to get rid off 4 instances to not skip Green Goo by dying with onmission1. The first death is ez, for the other three, you need to hold a call while dying. It does not say "mission failed" but that does not matter, one instance fails. Do the dying part after getting the jetpack, as you can get a wanted level again after dying - 5* inside A69.

Green Goo You can stand in front of a sprunk machine "nearby" (just stand there). It allows exiting/entering the jetpack and then you can use the Hunter to kill them all. It is probably better to do intended strats, though. https://www.gamefaqs.com/iphone/739698-grand-theft-auto-san-andreas/faqs/54671?raw=1

Edit:

[3:29 AM] Patrick: Interesting Applications I) Los Desperados TL;DR: To avoid "car AI" up until the Hazer garage, park your car near Cesar's friends, get out, wait for everyone to have left the car, then and only then get into the trigger. That despawns your car, disabling "Car AI". [3:29 AM] Patrick: https://www.speedrun.com/gtasa/thread/4gzdo See that post for videos with and without car AI.

Tirean says that if you don't skip the intro cs in Saint Mark's Bistro, it becomes way easier. I have not tested it but it seems like duping this mission is unnecessary.

If you don't skip the cutscene, CJ crouches during it; I assume that is what he's referring to?