They should lock it down into a system where you cant hop, like a 6 hours lockdown if you swap characters to a different faction or something, idk really.
I really hope they don't because the PS2 system just encouraged hopping around factions whenever their zerg was winning. It didn't promote any community spirit or give any incentive to care about your faction winning.
He bears the Chapters legendary Lightning Spork. Irony is, being dead has a terrible effect on your appetite.
Personally I would really prefer it to be something like 18 hours to log into a different faction. But that's me. As far as spying goes, it's not going to be possible to prevent. Dedicated people will simply have a second account and spy from that. So, unless they attempt to insert some pretty hard-core mechanisms to prevent it (and even then it wouldn't be successful, but would cut down) it's simply something that it going to happen. which means the top few on the war council are going to have to pow-wow alone and only tell strikeforces the plans as they happen. It's not ideal, but since we can't actually give people drugs/read their mind/See they are really an ork or have pointed ears.... we can't really prevent it. On the other hand, it can't be prevented from our own spies either, so there's that.
At the end of the day, spying is going to happen- there is no way of stopping it fully. In regards to what to faction limitations, I thought that PS2 limited you to one faction per server... unless I'm mistaken? That seems good enough for me, especially as you would have to pay to get any other faction other than Ork (seeing as they are the only f2p faction), which would A) Discourage it, and B) Give the Devs a bit more cash in pocket for those that go through with it anyway.