I think it'd be quite useful to set a limit on how many fireteams can be created.
Recently, one particular user, you'll know who I'm talking about if you go into the "Find Fireteam tab", started spamming loads of postings, flooding sometimes up to three or four pages with requests.
I'd propose a limit for max. three or maybe even five [b][i]active[/i][/b] postings, and you can create another one after you closed one from before.
Also it'd be nice to implement a button or an option to selecet the region that is being preferred.
In kind regards, KnallFrosch