Sorry if there is an AI behavior suggestions thread.
1. The command to "Stop" seems to cause AI who are in boats to disembark. This can be deadly and it shouldn't work that way. I presume it is this way in vanilla but it could be a mod I am using.
2. AI Group mates who are assigned to pilot a boat, by default seem to want to motor off the coast 50 or 100m or more and then sit there with engine idling. This too can be deadly and it shouldn't work that way. More broadly, it seems fairly common that AI assigned to a vehicle immediately want to go driving off even without any command to do so.
3. A command to: (a) Open Fire briefly, then go back to taking cover and/or (b) Open Fire briefly then run left/right/forward/back and then take cover/go prone.
4. A way to tell AI squad mates who are in a vehicle to turn off your lights, or better yet, to leave the lights off by default.
Will add more as I think of them.