Is it possible to prepare for bottom samples?

[SwimRunLift]

Hello,

I have a Recon contract and I am shipping out in June. I understand that at BRC there are alot of bottom samples.
I do not live near any deep pools (the deepest one being only 7ft).
Are bottom samples something one has to prepare for? Or will i be fine as long as I am in good shape and don't quit.

Thank you, and I hope I am breaking no rules within this forum.
I also searched this topic extensively and found little to no information on it.

 

[Teufel]

You’ll be fine. Just work on your breath hold. Make sure you are good running shape as well.

 

[SwimRunLift]

You’ll be fine. Just work on your breath hold. Make sure you are good running shape as well.

Truth be told that's the answer I was really hoping to get.
Thank you for replying sir.