If I could add an extra point :
On Payload defence, buffing the Engineer from time to time is more important than it sounds. The nest will come under a lot of flak, and having 160-185 hp instead of 125 can make a huge difference.
As for kritz on KOTH, I am not a big fan of this approach. The fact that many teams run kritz is more the result of copycat play than a true reflection on what your needs and priorities are and how addressing them will articulate with your team's strengths and weaknesses.
If one team runs uber, the kritz team will have a rather small window of opportunity to attack. More pressure, more mistakes. This makes a team running kritz right off the bat absurdly predictable, because they can't freely choose when to strike versus a more careful uber team. Not to mention that a good sniper will simply wait for the kritz push to wing your demo or medic, leaving you with your pants down while the other team proceeds to counter kritz or spam you.
From the way I see it, kritz seems better if you have no difficulty in pushing the point and want to press your advantage and eliminate the other team's ability to counter attack. Uber is better if your problem is capturing the point in the first place.
Edited by Migthy Burger, 24 April 2014 - 04:07 PM.