As interesting as this sounds, I am opposed to it. At least, I would not allow it on my server. Most DMs are long-ranged affairs, with people shooting wildly in all directions. If a single hit to your chest would kill you (if you had the bomb), then nobody would use it. That all changes, of course, when you use something like Diggy's USSR DM arena, where it's all nice and close. There would be no winners.
That being said, this really would be epic. Imagine a map where the defending team gets an impenetrable fortress, but the attackers get Self Delete bombs. One team member would have to jihad into the wall so that his teammates would have 10 seconds to infiltrate the base. Okay, maybe I would allow it in my server...