Some infantry units have visuals shooting the wrong kind of weapon.
Example: Gvardyia in the 16-ya Gv. Strelkovy, their DP-28 fires like its a panzerfaust or some other rocket gun.

Several units show up different in game to simplify DLC requirements to launch the mod. Hopefully all the infantry weapon bugs will be fixed soon

For certian groups like the rats, infantry wont show up and for others you cant select air

Originally posted by Growodlet:

For certian groups like the rats, infantry wont show up and for others you cant select air

The air not appearing is most likely due to you not owning the DLC required for those units to appear.

If you are talking about the base game rats version being gone, then it is because I decided to disable the division since the modded version was already present

I can double check the air tabs though, do you know which ones they are? it would speed up the process for me to check.