Yeah the Motorola walkabout 1000's are nice as well (20mile) The nice thing is they have the NOAA weather channals build in..so you know whats going on, and a set with a chrager is only 40 bucks. And they have a LED Light..very usefull in night games.
The problem with CB..is well its the citizens band..and people listen in, if someone hears a mil-sim going on..well nothing good could come of it.
And a tip..NEVER EVER take your stuff to school (even gear)..one of my buddys had his vest and some radios in his locker for a game later the day (weapons were already at location, he just forgot to bring those)..well someone decided it would be funny to tell the school cop about it...luckily it didnt end badly..could have been realy bad.