I have both you knob. Invective is fine, takes about 24s to spawn ammo, roughly the same as the boxes themselves. That's also for FOUR ammo, which means you need say 30s x about 5 to get max ammo, that's three minutes, longer than a round. Icebreaker takes about 8s for 2 ammo, which is considerably faster, and only has a clip of 6, which means you switch weapons for max ammo on any other special, without ever touching a box, as long as you wait for that screen at the end of a round. You could try reading the OP before mouthing off like a retard if you want to add anything constructive.