A friend and I decided to do a slur of climbing maps earlier today.
The catch was that we had to share the m79. It was a lot of fun because you'd have to actually trust your teammate.
For example, I would rocket jump up onto the ledge, and then have to pass the m79 back down to my teammate.
The best part was when he was jumping across a ledge and missed it. I acted fast, and by complete luck I managed to shoot the m79 right where he was about to hit the death poly. He was then launched back up and onto the ledge.
Give this a try if you have some decent climb maps, it's rather fun.
