Currently in Experimental capturing certain personal belongings gives you a rank bonus if you bring it back and deposit it in your armory. Capturing intel is a nice touch and a great way to give that little boost of rank. I do think there is room to expand on this.
I would like to see 'valuable enemy equipment' have both a rank and supply bonus if you are able to turn them over to a friendly base. Things like radio backpacks and command trucks specifically. Currently these give a small amount of supply if you were to return them, but rarely is it worth the risk of trying to do so. If the reward was higher the risk would start to become more worthwhile, it would also give a chance for the other team to recover items/vics if they are able to stop the players trying to capture.

Capturing enemy equipment is often a valid and well observed in real Conflicts. The purpose can often be for propaganda, direct intel, technical knowledge, or even straight monetary. No matter the goal, ultimately it's taking equipment out of their hands and placing it in yours. Capturing high value equipment could start to become a valid objective in games of Conflict and would encourage use of repair vehicles to recover things like broken helicopters or armored vehicles. Whether these vehicles are more valuable to your team in use or through exchange is up to the players. Towing would also go a long ways toward this type of game play but i will leave it here for now.