I just read this on (gulp) Reddit, so take this for what you will. Are you using Leight's again by chance? Over in the performance binaries thread on Reddit, one guy speculated ALiVE itself was causing crashes and the following poster said this:
"You have Leights OPFOR on there, which has been causing crashing post 1.54 when its ported units (Afghan Militia, ISIS, Chedaki, NAPA) are killed when used with ACE. We've run into that issue ourselves (as well as many other people according to ACE Slack as well as his Workshop page).
Speculation from December was that his hitpoints and such aren't set up correctly which is causing the issue."
Here's the thread: https://m.reddit.com/r/arma/comments/43tpv0/new_profiling_performance_binaries_v16_server_and/
I'd also be careful with expecting stability from those templates stickied here. I'm not saying they have any issues that I know of, I just know they haven't been updated in forever FWIW.