MARS Combat vehicle available despite engineering not finish building it

[Sunnybuns]

Hello. I started production on the MARS and a mission popped up 2 days before it was slated to be done by engineering. I was able to select it and add it on to the transport. Was able to function in battle.

[Sunnybuns]

I was also able to equip unfinished warden armor, I only had 2 finished but had 3 more in production. 

[fusion-waffle]

Great bug reports -- if the issue is still happening for you, can you press "F11" to capture a bug report zip?  It will create a zip file named something like bug_report_2026-04-02-19h19_gc_7.18.2_user_f11_0.zip saved to My Documents/My Games/Xenonauts 2/BugReports,  you can drag & drop that zip file into a post in this thread to make it easy for Kouki, Chris & co to take a look.

Edited April 3 by fusion-waffle

[Sunnybuns]

I got another free MARS when another mission popped up. 

bug_report_2026-04-03-14h35_st_7.18.3_user_f11_0.zip

Edited April 3 by Sunnybuns

[Kouki]

11 hours ago, Sunnybuns said:

I got another free MARS when another mission popped up. 

bug_report_2026-04-03-14h35_st_7.18.3_user_f11_0.zip 8.91 MB · 1 download

Thanks for the bug report. We're still looking into it but we haven't been able to reproduce the MARS being made when a geoscape mission shows up. Does this still happen in your campaign?

We've found something strange though and that MARS-2 becomes unusable once you perform the AC interception in the AC autosave. I suspect this is the other free MARS you received?

[Sunnybuns]

11 minutes ago, Kouki said:

We've found something strange though and that MARS-2 becomes unusable once you perform the AC interception in the AC autosave. I suspect this is the other free MARS you received?

Yes, I got an army of MARS now  I believe it started happening after I unlocked warden armor and magnetic weapons and que up the guns and armor at the same time. 

[Chris]

29 minutes ago, Sunnybuns said:

Yes, I got an army of MARS now  I believe it started happening after I unlocked warden armor and magnetic weapons and que up the guns and armor at the same time. 

Thanks. Do you have any mods enabled in your game?

[Sunnybuns]

59 minutes ago, Chris said:

Thanks. Do you have any mods enabled in your game?

Nope! Didn't have time to make any, just a vanilla game on commander difficulty with +5 to turns and a 5% chance of soldiers surviving.

[Kouki]

On 4/4/2026 at 6:52 PM, Sunnybuns said:

Nope! Didn't have time to make any, just a vanilla game on commander difficulty with +5 to turns and a 5% chance of soldiers surviving.

Hello there, sorry for the late response. Does the game still generate a free MARS unit when a mission pops up? If that is the case, can you send us a save file before the bug happens (i.e. before the mission pops up on Geoscape)?