I’m gonna keep this short and simple, back in the day, every unit had an arm patch to show which unit it belonged to, however it got removed. And I’m suggesting they bring it back.
Examples
Signed Ludewick A Kartztine of the 68th heavy infantry Division
(Guy’s I think I’m lost at sea please send help.)
You should add pictures, posts with pictures get more attention 
Good idea.
I think it should be campaign-based. If the squad you have actually participated in that battle, it should be given the correct patch. If it didn’t participate in that battle, then it should be given standard-issued patches, or any patches of what common divisions fought in that battle.
Battles right now feel like it was an airsoft match, with people buying cheap reproduction uniforms.
Now this is a different topic that I’m going to talk about soon.
Yes, that’s right. Historical squads corresponding to historical battles must have historical patches.
