I signed up to it ages ago and never played the 1st game. Visually its very nice, plays very smoothly and hitboxes arent a joke like BF3's. I only saw 3 maps (or as you say 3 continents) which ranged from tropical beach with massive ships overhead, ancient ruins and the 3rd i only saw for a few minutes which had a lot of hills and slopes to ski down and gullies to hide in. I only had 2 weapons to try out. Machine gun and grenade launcher and my gripe from it came from the majority of the people i was on with using nothing but the launcher. The skiing was fun to do, slide down a big hill then blast upwards with the jetpack. There were ammo poins you walk into to reload all ammo.
The game mode i played was CTF and dont get me wrong it was fun for a little while. I just got tired of the constant use of the same tactic by people. (namely tube tube tube) fighting them was as easy as judging where they are going to land and firing at that spot but it got old fast for me.
I don't want people to think that im slating the game here as from what i have seen it has a good engine that ran the game at a fast pace with no problems at all, my only gripe is about the afore mentioned spamming of tubeshots to the point that someone actually shooting at you with the machine gun was rare (well, rare in the half hour or so i played it for)
Ill reinstall it later and give it a more in-depth go while its had a few days to settle but i hope that same style of play is not the prevelant one as that style is not for me.