Yes, although in the games I play, it's more based on my own team than the opposition. The games I play are all teamwork-for-the-win, so someone who gets out of the teamwork zone either dies, causes the team to lose, or both. I think it's valuable training to be able to mesh my abilities with the team I've got, rather than going all out and basically blowing any chance of teamwork.
That's one reason I enjoy finding a team that's better than me, I can go all out and push my limits, confident that I'm not exceeding their capabilities.