Lets just say maybe you don't have a clue what "Worms" is. I think this is HIGHLY unlikely, and certainly embarrassing for you if that is true in anyway possible. The Worms of a decade ago is much the same as the Worms of today, with newer titles adding a few spins and twists on the classic formula but generally sticking to what made it work all these years to go
Basically its just all the lovely new features from Worms Revolution have been retained by its wriggling, younger sibling: classes, water, and physics. Combatants are split up into soldiers, scouts, scientists, and heavies, all with different movement speeds, health, and special abilities, like the scientist worm's knack for healing his chums. They've been tweaked and balanced since Revolution, with area of effects for special abilities being added or increased.
What makes Clan Wars above its predecessors is the effort that has been put into multiplayer. There's local multiplayer, then your standard online PvP, but the truly special, properly new addition is the titular clan feature. With the same tools used to make a team of deadly, slimy worm-warriors, you can put together a whole clan, with a distinct appearance along with a shiny emblem and a clan name, and then recruit members to this clan, not that it matters at all since the pvp on this title is most likely dead or with 1-10 players.
Ultimately, its success lies in its ability to maintain a healthy population, which certainly won't happen if Team 17 keep churning out more Worm titles, so one hopes that they will take a breather. If Revolution was the best that Worms had ever been then this definently is a title worth having.