core file, mission pbo and logs can be found on
https://www.dropbox.com/s/keddueveaxa1kqu/crash.tar.gz?dl=0

to repro the issue execute the mission on a linux dedicated server
join to the server
as an admin execute on the console the following two lines, this is to provide points for the refortify action and the placement of the FOB
commandpointsblu1 = 200;
publicVariable "commandpointsblu1";

option A) refortify main base multiple times (low reproducibility of the issue, wheelmouse menu appears when close to the officer inside the building)

option B) capture at least one zone
establish a FOB (radio menu 0-8-1)
refortify a few times. (mouse wheel menu appears when inside the newly created FOB)

setup information
uname -a
Linux free-root 4.7.0-sabayon #1 SMP Fri Oct 28 07:47:36 UTC 2016 x86_64 Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz GenuineIntel GNU/Linux
8GB of ram
Game and OS running on a SSD.

please feel free to ask me for any information, I'll answer as soon as I see the email.

I'm spawning the units for FOBs on 0,0,0 then move them to the FOB location, this as per the biki information about code optimizations.

I'll continue making some changes on my side to see if I can increase or decrease reproducibility.

I have added a global flag named debugmode on init.sqf, this variable will spawn less enemies on the autogenerated zones. sadly when running on dedicated server you need to modify the script itself to make it usable as the zones are created by the server sometimes before the first player joins. note there is no event handler for debugmode, it is just a plain variable on the server used to exit some scripts sooner.