Global Agenda is a great Online Shooter with some MMORPG elements thrown in.
+Classes+
There are 4 classes. That might sound like its not much but don't forget every class has different Equipment and Skill choices that makes each class be able to play like different classes in there own way.
+PvE+ (Player Versus Environment)
The game has PvE which is extremely lacking in my opinion, It gets boring very quickly. There is different difficulties that do make you have to use team work but still it wont keep your attention long.
+PvP+ (Player Versus Player)
PvP is where Global Agenda shines. The game offers various games modes(Payload, Capture the point, ect..). The PvP is without a doubt the best part of the game. Even if you don't pay for Conquest the game it worth it.
+Conquest+
Conquest mode where you and your agency fight for control over a hex on the map. The game consists of different strikes teams of 10 going against other strike teams of 10. So its only 10 vs 10 but there is a lot more to it when you are fighting over key points of the map. {Agency(Guild/Clan/Legion) Required}
+Character Development+
Each character can level up to 50. At level 30 you have unlocked everything for your class. Every even level you gain a skill point and every odd level you gain a Equipment unlock until level 30.
You gain experience in PvE and PvP. In PvE you get a bonus if no one dies and in PvP you get a bonus if you win the match. You also gain Credits ( Currency ) in both PvE and PvP.
+Character Customization+
The games has a good amount of character customization. Beyond what you can do at the character creation screen you can Buy different armor Suits and Helmets and also dye all your equipment including weapons.
+Overall+
Overall Global Agenda is a game where a lot of fun can be had and in the end the decision is up to you if you want to purchase it.