I know this thread is about 5 months inactive, however....
I too am having the exact same issue described here(with co60_AW_Invade_Annex_2_83I.Altis), I have been running co30_AW_Invade_Annex_2_83I-S.Stratis for about a week. Excellent job on the mission! This is the first time i have fiddled with Arma in Linux and so far the SSD Lnux VPS that I am using seems to run Arma 3 Stratis AW I&A really well
Would love to also host an Altis I&A from AhoyWorld
Edit, 90 minutes later:
I see actually, https://forums.bistudio.com/topic/181639-arma-3-ubuntu-server-altis-fails/
This guy mentioned that it has to do with the amount of memory, I can confirm, this is the case for me as well.
I was running this on a Ubuntu VPS that was only 1GB memory, bumped it up to 2GB and Altis I&A fired right up and i connected no problem!