DOTA, Guild Wars, Pirate King online... you name it.
To win a guild war, there's always ONE trick you can use
USE TWO ACCOUNTS
Play as two characters, one character on the "good" side, the other
on the "enemy's side".
You need to play the "mole" well. Sabotage the team u want to beat
but don't make it too obvious, and tip off the team that you want
to win.
I'm not a gamer per se, my friend is, and he started using this
cheat after watching "The Mole".
HAHAHAHAHA!!!
And it worked!
Really well.