Dismemberment is on the way in Chapter 9, since if anybody remembers the discussions we've been having about how Medix are going to work, amputations are a big part of the Ker-Triage! rules.
I don't have them in front of me, but I seem to remember they're something like -1" for each missing leg, -50% if you're down to half of your starting legs or if any part of your body is dragging on the ground that isn't supposed to. If you've got no legs then you can use an Action to drag yourself by one inch for each arm you have free.
With the dismemberment rules in place, players can now cut off each other's limbs, so there's a sidebar bit about that: any damage that almost kills a creature, but exactly matches the creature's armor instead of exceeding it, does the following:
6. if it's damage from a cutting weapon, lose one limb (defender's choice)
7. if it's damage from a crushing weapon, suffer Knockback (1" per damage die) and fall down Disrupted
8. if it's any other type of damage, fall down Disrupted
When minifigs lose a limb violently, trauma and swelling are enough to cut off blood loss at least until the battle's over. Maybe they bleed to death or get gangrene or something some time later, but by then it doesn't matter anymore because the battle's already over.