Offense
On offense, you have to play very quickly or fake a lot
Quickly means either rushing in very fast (satchel, omen tp, or dash to go faster) or rotating quickly
Since there are 3 sites, try to hit the one with only one person on it
Taking C, route logs side. That way all the threats backsite are on one side instead of both sides
Defense
C is the easiest to hold with one person, relatively easy to stop them walking up C long with a smoke or molly
A is hardest to hold because it's easy for offense to rush A long and short at the same time.
If you have two people A and they're rushing, it's usually best to have both hold A short. It's easier to hold the whole site from there, and if you have Omen or Jett or maybe Raze you can high/low on the boxes