I'll be honest. The multiplayer is dead unless you find a dedicated clan or group. But other than that, this is a really amazing sequel (read: amazing sequel) that not only adds to the content, but also to the gameplay, and improves upon the rough edges that the origional Section 8 (which is btw also very amazing) had.
First, the content. You will notice quickly that alongside your standard weapons, you have modules that improve certain aspects of your armor suit. Want to be able to absorb large amounts of damage and dish out even more? You can improve the damage per shot that your weapons do, as well as improve your shields an armor to more than double your standard infantryman has. Want to be that classic sniper? You can do that too. You can make a custom loadout for almost any situation. Anti-infantry, anti-armor, anti-turret, and so on. I only wish that you had a way of attacking enemies that are "burning in" so to speak.
The gameplay is astounding. Section 8 asked the question, "What is players could spawn anywhere on the battlefield?" They answered that question by letting you "burn in" from your dropship onto any point on the battlefield. However, the enemy can deploy stationary AA guns that only serve to shoot you out of the sky (and they do that very well, I can tell you that). You also use this burning in tactically, by striking directly into the enemy base or (I kid you not) right on top of an enemy soldier.
Now, the origional Section 8 had some balancing issues, such as a Machine Gun being more effective than an Assault Rifle at everything except accuracy past 50m. Now, in Prejudice, the Assault Rifle reigns supreme at quick skirmishes between soldiers, while the MG has been altered to a much more supportive and long-lasting state.
Since the maps are fairly large, every soldier has the ability to "overdrive" which lets them run like there's a grizzly on their ♥♥♥. You can use this overdrive ability tactically too, by ramming into enemy soldiers or using the extra speed to make your jetpack that much more effective.
Another interesting thing Section 8 does is let soldiers call down deployables such as MG guns, RPG launchers, scanners, and more, which allow a group of soldiers to make a small outpost complete with defenses, scanners, AA turrets, and of course depots that repair them all. Trust me, it's not fun to have rockets and bullets raining down on you with no end (until you die).
Haha wow I just realized how much I had rambled on XD
So I guess in short,
This game is ♥♥♥♥ing amazing, and very underrated. Buy this. Get your friends to buy it. Revive the multiplayer.