((Playable map area) contains (Random unit from YourUnitGroup)) Equal to True
Change "Playable Map Area" with the region you want.
((Picked player) is an enemy of Player 2 (Blue)) Equal to True
Change "is an enemy of XXX" with the player you want that picked players become ally/enemy to.
This will however not stop units in an area of attacking each other, even though they are allies. You will have to order them to stop or move them to a new area and have the "enemies" break pursuit so that the last order is neutralized.
I just saw a bunch of running and jumping past all the enemies look like it was scripted as he said I guess I should have watched the whole thing. I only got a couple of minutes in. You should post that video in the forum Tom
Currently busy with making the run even better, so I'll post that new one once I'm done. Right now, I had to modify the emulator itself, the tools that makes this video, and some RAM address disassembling / reverse-engineering to get the right values, and such.