When a team member is wounded there is a logical chain of AI actions:
1. the wounded AI reports he get hit
2. the Squad Leader orders the medic to treat the wounded AI
3. the Squad Leader orders the wounded to get treatment
4. Medic moves to wounded and treat him

But when someone has low ammo the Squad Leader orders to rearm from his own or rearm from other team member completely ignoring the Ammo Bearer (incl. assistant machine gunner, assistant AT and other)

There seems to be problems with AI interaction between Squad Leader-Rifleman-Ammo Bearer, 'Rearm' should follow the same scenario as treatment

Check this YT video with demonstration a normal AI actions on member wounded and bad actions when AI low ammo
https://youtu.be/Fg4LpT9W1lI