Modern Warfare 2. I just wanted the Russians to win from the start so the idiocy of the storyline would stop.
In peacetime, today, the US economy is 10 times bigger than the Russian. Russia has an ageing military and would be unable to sustain a major military conflict for even a week.
The US has the most powerfull military on the planet and the biggest national economy.
In the game, Russia has just gone through a civil war - and then they invade a country stronger, more populated and better equipped than they, and somehow I'm supposed to buy that the US coastguard isn't having a field day shooting the starving raft-riders with poorly maintained Soviet-era weapons. I'm supposed to believe that the US is the heroic underdog fighting a vastly superior, yet less numerous, poorly equipped, poorly backed force.
So yeah, story made me hate the heroes, villains were evil "just because", and all in all I just wanted an outcome that would ruin the chances of sequals.