Even when it does split up our squad of four, we can always get back together within a round or 2, tops. And once you get in the same squad in a game, you'll stay there no matter what.
I imagine that if it's not like this on 360, it will be once you get the patch.
Join our PS3 BF3 server! Search for 'Better than Halo' in the browser and bookmark us, and/or add me on PSN (ThemisB). We play most nights from 8pm GMT. See you on the Battlefield!