I've also seen people get shot in the crotch in CQC.
Ain't no pain like getting shot point blank in the crotch by a twelve year old with a G&G "Benelli" M1014 Shotgun. He must have had one of the guns that shoot multiple bb's, at least that's what it felt like. Yes, that happened to me, and I thought he shot my dick off. Matter of fact, I have been wearing a cup since then.
In my first game I got hit straight on the nose by a L96 sniper rifle from 3 meters (We had a disagreement about taking hits, he got upset and shot me. We we're 14 at the time). I had a red wound for 3 weeks, my nose was swollen for 2 and it is still slightly deformed from the incident.
That, my friend, is Airsoft Pain.