Hey, bud. Great mission, noticed a few bugs in the XML from that "High Stakes Zipped".
Variable "Briefed" is never set to 4.0 (needs to be placed as action in Event "Enemy Spawned")
You also need to remove "Briefed = 9.0" from the "Sensor Damage" Event, it breaks the sequence and isn't critical in any way (Since Briefed jumps from 8.0 to 10.0)
I make bugs like this all the time, we're gonna try it out and see if everything's gravy :)
We're on the public teamspeak now