Medal of Honor Heroes 2 has two single player modes, a good 32 player online mode, and amazing controls.
First of the single player modes it the regular career, which you will most likely spend most of your time other than online. This mode gives you full control of your character, which is definitely a very good thing considering how much customization you have. There are various meters for you to adjust things like sensitivity, and you can customize the dead zone size (area you can point at without having the screen move) and it all works really great. The campaign will last you a few hours and will allow you time to get used to the controls before it starts getting challenging. The motion controls are great, and it is pretty fun yanking the remote back to fire shots, and the shotgun is one of the most fun weapons because you actually do a pumping motion to reload. As well as the shotgun, there is also the sniper rifle and bazooka with motion controls. You twist the remote to zoom in/out and you put the remote on your shoulder to mount the bazooka, which is also a satisfying move to perform.
The other single player mode is arcade. In this mode, you automatically move, so all you have to do is point, shoot, and reload. It goes through the same levels as the other single player mode, but its not as enjoyable. Its good if you have never played a FPS on the Wii before, or if you want some simple fun, but the other mode is much better.
Now to the best part of the game. The online multiplayer is definitely great, as it supports 32 players and runs almost lag free. You can use all the guns that you can use in the single player, and you have just as much customization over the controls as well. You have all your basic modes, and there is no friend codes restricting who you can play. The only minor issue is that is sometimes feels that it takes a while to kill someone, although this is only a very small problem.
Medal of Honor Heroes 2 sounds great, plays great, and is a great game in general. The Wii zapper controls make it just that much more fun as well. The single player could be a little longer, and co-op would have been fun, but this is definitely a game worth buying.