Well, played some MP servers today on BF2 Special Forces and I really like it. There is more strategy needed considering you always gotta keep your head up now. Before, you would know where the enemy would be coming from. Now, with almost every corner of every level accessible, it's tough to expect the enemy from one specific point. I palyed a few rounds on Devil's Perch, one of the night maps, and I thought it was great.
One other thing too. In order to use any of the new weapons on the old BF2 maps, you must unlock the tier 2 weapons on Special Forces maps only. So for instance, to unlock the second Assault job weapon, you first must have the first one unlocked, from the regular BF2, then unlock the tier 2 weapon on a Special Forces map, in order to use that weapon on a regular BF2 map. I believe the same goes for the zipline, flashbangs, and grappling hook.
Overall, great expansion, some new medals, ribbons and awards too.