We all know that Vostok is small studio with busy hands and lack of resources.
So why not let the community do the work the Devs would otherwise have to do?
Off course the community cannot edit the code, but we could gather the textures and make models.
Especially regarding weapon models, I understand that Vostok uses special technique where they do 360° photos of a real firearm and then convert it into model.
The playerbase in USA, Canada, Latvia, Switzerland, Czech and Slovak republics etc. has a lot of real firearms - so why not release a HOWTO describing how to set up a mini-studio with the firearm and necessary lightning and DYI camera rig, and let the community do all the hard work collecting the 360° photoshoots of new firearms?
The Vostok would declare a Contest, where only the photos which are technically useful without major work hours investment on VG's side would apply.
And also maps. If VG releases the map editor and some rudimentary HOWTO plus Survarium "edit mode" where the player would be able to walk on his WIP map in singleplayer, I'm sure the community would over time create better HOWTO, then new maps, then maybe english translation of the editor and even more maps...