Remember in the beginning i promised you a Worms clone?
And Carnage Contest is a Worms clone. Literally whole game can be described as two words: "Worms clone".
We play as dudes in fully destructable map with traps, flaming barrels, and units cant swim - clearly Worm, but maybe with blood. So what is the delicious part? Just after the registration offered you after a game start, you can play over the internet for free, and thats might be the most important thing for russian people.

So, point?

Atleast, CC will attract more players.

Welcome to the internet.

I think it is 65% different from worms but some people thinks that it is only worms with different skins. These people are weird.

Actual mistakes, happens sometimes, sorry, fixed.
Yes, thats a worms clone, can be seen clearly, and bot can be written almost in any multiplayer game (just needs the hands from right place)

So, whats the candy? Main thing is ability to make maps, weapons (requires Lua knowledge), just need skills for that.
Something like that was demonstrated in one of the worms game, but in easier way. Dont know how to make your one? There is many of mods and stuff on fan sites. Thanks to it game have a new life, because Hitler as a weapon is really rare to see(even in crazy indie games)
Second advantage - free multiplayer, what might act as main thing for russian players.
As conclusion might say that Carnage Contest is unique in comparsion to other clones, but hardly can distract you from balanced multiplayer of Worms: Revolution.

In other words:
Fixed.

Wrong,
Fixed, Improved, 90% Easily Modifiable, 100% Free, Optional Registration, Single-Player Missions, Single-Player Servers, Multiplayer Servers, Hundreds of Lua Scripted Weapons, Game Modes, 3 Types of Weapons, Much Blood and Gore, and even more.