Is it possible to make bipeds explode into gibs much like the carrier form when killed but only triggered by a rocket projectile or a sticky grenade?

You can animate the death and create an effect which spawns garbage items or other things for the death of a biped, but I'm pretty sure you cannot have that only happen for specified projectile types. Headshots have their own death animation, but exploding stuff does not trigger any special animations.
Edited by MoooseGuy on Aug 10, 2012 at 12:40 PM

hmmmm, you'd have to sacrifice regular projectiles if you only wanted explosives to cause the effect (gib). Otherwise, every weapon would cause it to happen upon the biped's death, once the bipeds health hits zero, regardless of what weapon hit it, itll start the "body destroyed effect". But basically, what Moose said about death effects spawing garbage items, and particles, you would reference this effect in collision model.

And not even open sauce could work around this?

Your chances may be slim, you should pry ask Kornman.
Edited by Caboose 14 on Aug 13, 2012 at 06:32 PM

I would also like to know this due to my mapping team being based on forerunner stuff.

lol, if you can learn how to code, and play with OS, maybe you could do it yourself, but we all know, nobody around here cares enough to start learning how to code.