Wolvrine
![salute :salute](http://bbs.hitechcreations.com/smf/Smileys/default/salute.gif)
the 201 to 299 range can be heard across countries, so I wouldn't use this for a mission channel.
As for picking a channel, at random, I would choose a number that everyone can remember, like 178 for the 78th FG. If you find someone else on that channel, then ask if that channel is being used by their squad. If it is then, I would go down the list keeping the 8 alive, 168, 158, 148, 138, etc. That way you have a range of 10 numbers to try that at least 'rhyme' with a number you have chosen.
Because the vox channels are not always occupied you may find that after a week or so, you have duplicated another squad vox channel. It happens, and sometimes works out to be a good thing and might make some new friends, or just decide to move along.