One thing to note that @weebykiwi and I found out is that if both preds have the same retrievable weapons in their load out they can pick up each others weapons.
For example on the match on derailed when everyone went to the large blue building in the center, both our combisticks were still back at the river camp. I was able to pick one up and chuck it to the top of the building where weeby was able to pick it up, I then went and collected the other. I can see this adding a lot of strategy and teamwork between both preds should this become an actual mode in the future.