Nah, if you have the patience to A. Get good at it. B. finish all the training to play the good maps, then it becomes a pretty good game. The people who I noticed really disliked it were those who tried to play it like your typical FPS, rushing headstrong into 20 enemies, only to wait 10 minutes to respawn.
There's nothing quite likes spending 5 minutes creeping along a series of tunnels with 3 other guys, actually playing smart so you don't die.
And... then there was SF hospital if you wanted to play fast paced.
Yeah the SF training course was the most insane thing ever. Takes 30 minutes just to not be seen.
Although if I end up crawling through tunnels all sneakily, somebody usually just walks by and spams the M249 and all your time is wasted.