This belong in "tournament hand analysis", so maybe a moderator can move it? Its also much eaiser to give usefull feedback, if you find the hand history file and convert it using the free converter here on CC.
But from what, you posted, you were CO, Villain was BB, and you were the effective stack with 24BB right on the bubble of an MTT. Those 24BB was around a middling stack for the event. You opened AQ, presumably for a min-raise or something sligtly larger, and then the chip leader in BB made a 3-bet, but he did not put you all in.
This just scream strength to be honest with you, because if he had a marginal hand, why did he not just call getting a great price and closing action? Or if he wanted to use his stack to bully you on the bubble, why did he not move you all in? That would definitely be the standard play, when you only started with 24BB, and he is out of position.
So depending on his sizing I would either just call here and see a flop or let him have it. And I would be even more inclined to not get it in, if someone else was running on fumes. Like someone has 4-5BB, and within the next few hands he is going to be hit by the blinds again. In that situation there is a lot of value in getting yourself in the money, before you get involved in a situation, where you need to win at showdown to survive.
Finally if you are going to 4-bet in this situation, you need to jam. There is no point in putting in 70% of your stack, because this already commits you to the pot. Once again we are missing the crucial information about the size of his 3-bet, but if it was very small, maybe he would actually fold to a 4-bet sometimes, and then you want to jam on him to make it look as scary as possible.
But unless you had some read, that he was just a crazy fish goofing around, I dont like stacking off in this situation. I think, you are going to get shown exactly AA or KK a very high percentage of the time given, what I perceive to be a big bet sizing tell.
