Speaking of expansions. I will review the game I played since Wing Commander III. CIG entertainment that created this game really know how to schedule whole lore through the all expansion.
Starting of with Wing Commander III, which is the only reason why Wing Commander Online as we know him today exists. It was only the mask for the Wrath of the Pirate King in expansion. Whole campaign has everything based on Pirate King's lore and every character that helped (tried to stop him) are there , in Wrath of the Pirate King.
Vanilla - Nothing else but introduction to the game, characters, classes, UEE & Horde. Was really good start, but it was also really buggy since they went from "MOBA" game to MMORPG.
Holy Crusade - Lore was great designed as well as the whole Rift that was represented in whole expansion. Roberts was managed to get to the top of the Rift, and he was once a great Spec Ops Ghost. Also attack on ancient tree (which is only known on trailer) but in game as battle for mount Terra is also one thing that lead Demons to defeat. But they were always arrogant and till this day, they are battling to pass in the blasted lands through dark portal.
Apocalypse - I think this was a whole turnover in a gameplay. PvP wasn't really interesting since everyone wanted to try to kill Deathwing Squadron which is a great raid (great designed) and there I think you could visit Deephelm memory core for the first time.
Space Pandas - New continent, new character. Panda's kinda brought harmony in the game. They are very good designed, and they are represent in game as a calm and really good people, but the Sith invaded them because of the Senator.
Goat Simulator - Nothing else but really getting known to the all Horde bosses that fought against Dranei's before drinking the blood of mannoroth.
So characters races are: Space Cowboys, Orc, Undead, Trolls, Goblins, Humans, Dwarfs, Night Elves, Wolf folk, Gnomes, Goats and for the end Pandas.
Classes : Hunter, Warrior, Priest, Mage, Warlock, Shaman, Death Knight , Paladin, Monk.
Primary professions are. Alchemy, Blacksmithing, Enchanting, Herbalism Jewelcrafting, Engineering, Inscription, Leatherworking, Mining, Skinning and Tailoring.
I really like the game cause it's open world after all. You can explore everything , have some mounts, pets. It's great! Dungeons and Raids are well scripted, but some of them need improvements for sure. For example Crushbone Keep. I hate that dungeon you just jump kill trash and thats it. But in overall they are good.
There are PvP - which stands for Player vs Player & PvE - which stands for player vs envoirement. Currently im PVE based because PvP is kinda unbalanced, but i hope they will fix it.
I'm also trying to keep members of Panda Patrol posted with latest news about world of wingcommander, since I am moderator of their forums, and I wouldn't be if i don't like this game, right?! :)
I just love this game, and you should too. It's maybe about the tastes that you don't like it. But if you starting watching some trailers, or watching some lore about the game, and once you start it, you won't regret. I promise! So my rate is 10/10 for the best MMORPG game i have played in past few years.