C seems very indefensible to me on that map. It has 4 routes to it while A and B have only 3 and A's routes are pretty defensible due to the short sights and B's routes are as well because it's easy to LoS snipers and anyone trying to come from the sides are pretty much sitting ducks while they jump over to try and take B. C's 4 routes are close together so it's easy to misjudge which route the enemy is coming from or to quickly get surrounded. Add to that the fact that if you take both A and C, the enemy will spawn at those zones depending on which has the least amount of your teammates and that makes it even more difficult to win. In my experience, most games I've played there we won while holding C and B and that's because the other team would spawn at A and try to jump over to B and we would either snipe them on their way over or FR or Shottie them as they jumped over. If they tried going through the hallway, we would shut them down with snipers near heavy or tripmines. If we lost B while holding C, we had more cover coming to B than we would if we had A. Which made it more difficult for them to snipe us and easier for us to FR or Shottie them. But this is coming from someone who was doing this with a full fireteam.