Defense
sentinel on C, 2-4 on A, 1 or none B (leave a trip B or something so attackers can’t just walk up)
Retake B from as many sides as possible (4-5 different paths)
Retaking C you want to flank, otherwise it’s rather hard
Don’t let the defenders take A ideally, fight for rubble early and leave someone there to hold it (usually Raze or Omen on top of rubble)
Odins are good - play in tree with reveal most of the time
Attack
If they have no real sentinel, or their sentinel isn’t playing C, just hit C as C is hardest to retake and you should be able to take it with 5 people
Wait out util on A and then carefully clear everything