I like Brian's idea; limit a person to one hi-cap, restricted to semi auto, and they "must" remove their magazine to wind it. Our field rule is, you get two games and then you must have your hi-cap replaced with mid, low, or real-caps.
But honestly I have to ask. If those guys are running "wannabe" support weapons, and you're having trouble with it; what on earth are you running? Anything worth being called an airsoft gun, should be able to accurately take out something like that. Unless of course your running a wannabe AR. Unless your support weapon is fully upgraded, high end, and tuned properly, an average AR should be able to eliminate those guns easily. Same goes for sniper weapons; unless you've dumped $1200 - $2000 on one, it's just a toy.
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