Ultra tech proximity rounds.

[Ulzgoroth]

Originally Posted by sir_pudding

Note that surviving on-target fires for effect by even light mortars without cover is unlikely; at least not without significant injury..This is why digging in is important and also why the response to incoming is to hit the deck.

Of course, in GURPS we tend to want to be able to determine what that would do to a superhero, a dragon, a battle robot, and a vampire, not just what it would do to a human.