I didn't know where to put this and it's mapping related, so...
Have you ever thought that the hgrunt's default head (gas mask) is unsuitable for a map, eg: hgrunts as security guards in a government buliding or something? They are unlikely to wear gas masks and helmets there. So, want to change it to a beret, but not have them as squad leaders? Simple! Just turn SmartEdit off and add a new field. Call it "body" and specify the head's number as a value:
-1: Random
0: Gas mask
1: Beret
2: Balaclava
3: Cigar
I think you can also edit this to give the balaclava guy an MP5 and the gas mask guy/cigar guy a shotgun, but I haven't tested this yet. If it works, I assume the weapon will behave as whatever you set the weapon as, so if you set the body as a shotgun, it will behave as an MP5. If you can do this, then I assume it would be:
4: Gas mask, shotgun
5: Beret, shotgun
6: Balaclava, shotgun
7: Cigar, shotgun