Color degradation and dirtying of weapons is sometimes to fast. Sometimes you just walk on sand or mud and you get extremely dirty (like a rally car, it is everywhere) and it doesn't make sense. It needs a little bit tweaking. The same for weapons and they get extremely dirty, no operator would let them get so dirty. And paint degradation is sometimes to fast.
Agreed, there was a nice feature in Wildlands where you restore paint. For some stupid reason they took out this feature and many others out for Breakpoint. The weapons select screen was far superior in WL. So much neater and concise. The lack of being able to filter what type of gun has been lost too. I just get rows and rows of guns now, WL has SR, STG, SMG etc all in tabs making it far easier to find weapons.