Technically, raiding a building in FPP was much better than in TPP.
In TPP Mode, if players were to hide behind the window or the staircase, they would be able to see the situation outside without revealing themselves as long as they had the right angle. This would technically be equivalent to having an X-ray vision.
Defending with such a visual angle was overwhelmingly advantageous and the offensive party would not be able to hide anything. In an FPS game, what set the professional players apart from the others was who was on the offensive and who had died from it.
This was the main reason why the offensive party raiding the building in the tournament would often choose to retreat after being in a stalemate with the defensive party for some time.
However, it was different since this game was in FPP. Other than having a cover, the offensive and defensive parties would have the same equal standing when it came to TPP.
