The control scheme is absolutely atrocious. There's a useless couch button, to sprint you need to hit the a button, removing your finger from the right stick so you can't look around while running. To slide you double tap the sprint button instead of using the couch button like normal. In a fast paced first person shooter this is absolutely unforgivable. This came out the same year as modern warfare 3 so there was no excuse as console fps controls had been around forever.