I favor airsoft, more realistic, tactical, and no clean up. More of a stealth instead of run and gun. I use sniper rifles in it. I have an L-96 fully upgraded, and a M14 EBR.
I rigged my L-96 up so much that its shooting 710 fps. Tournament illegal and the exact fps for lethal speed with an airsoft pellet. Well one game I was using my L-96, caught sight of British (thats his name) got a head shot on him. Lucky he was wearing a face mask cause that BB took his whole bloody face mask off.
I upgraded it with a laylax 210 spring and laylax parts minus a few things here and there. I wouldn't recomend the 210 spring really unless you plan on taking care of you thing and spend over 800 + just on parts. Friend broke my Laylax zero trigger. 150 bucks down the drain and you have to import those....
I mainly use my m14ebr though. Full auto sniper, heavy as hell, and its extremely comfortable. The guns usually 14 pounds but my bipod is 2 pounds, my scope is 3, and my silencer is another 2. Its a huge silencer, and its a real one :) Not a mock. I loves it.