I've been reading the SRD for Diaspora, especially the section on personal weapon design. I've found that the rules handle most of my cases very well, but I can't seem to find a way to model grenades. I did find the following reference:
Brawling and Close Combat Weapons
Brawling and Close Combat weapons are blades, clubs, and other designed melee weapons. They also include thrown weapons such as spears, shuriken, and (at higher technologies) grenades.
and the thrown weapon stunt
weapon may only be thrown, using the Agility Skill, and uses the range 1-2. Normal penalties for exceeding this range (-2 per band) apply. Weapon has the, “Out of ammo” Aspect, which may be compelled. Increases base cost by 1. 1bp.
But no rules for designating a weapon single use. Am I missing something here?