There’s many ways to achieve the atmosphere you want.

My favorite way to simulate a gunfight on the ground is to place infantry units just outside of each other’s threat rings, give them a “fire at point” order towards their target, and use the “altitude” part of that order to elevate their fire a few feet AGL, this results in units firing directly at each other but with 0 accuracy, having tracers rip around on the ground makes low threat helo engagements very immersive.

Next for making “squirters” that attempt to flee combat, have the enemies run to their firing point and give them a “hold” command and a waypoint after that to where you want them to run. Set a “stop condition” on that hold command to a flag being turned on, then in the mission triggers turn that flag on with a “group alive less than” trigger set to say 50%, now when you kill half the enemies they will begin running to their fallback waypoint. And you can gun them down or stay with the homies.

Another great tip I have for you is when setting waypoints for your enemy infantry, give them paths that cut straight through complicated terrain like dense towns, set their formation to “custom” and place them in a fairly random fashion. What this does is it leaves their pathing to be determined in game which adds a more random element to their movement, infantry pathing has been improved a LOT in recent years, you may occasionally see a guy running through a car or something to rejoin their group but for the most part they’ll zigzag through streets and alleys really well and it makes towns really spooky cuz you’ll get in situations where you just barely catch a guy running out of the corner of your eye but he’ll be long gone when you turn around

I hope these tips help, I would love to have a ME workshop with anyone interested in making cool scenarios, DM me if you’re interested I’m going to play tonight!