I was actually playing around with VCOM and ALiVE last night using my new African factions. It works great re: Infantry and vehicle combat. I didn't see any issues of units standing around. If anything they were super aggressive. I ran a test scenario of UN troops attacking Islamic militants on the Afghan Village map, and once the combat started reinforcements for both sides came pouring in. So I'd repeat what Nichols said and definitely reduce the hearing distance to keep small firefights from escalating into full blown battles everytime.
I'm actually friends with Genesis (the VCOM guy) on Steam and have been talking with him quite a bit on things that need to be tweaked for ALiVE. Version 3.8 is running well for me. I'll probably incorporate it into mission for our group on the dedi very soon to make sure it runs well for everyone in a dedi enviornment.
But I am really really liking it, more so than ASR in many ways.