>>63877717
NTA but a 50 cal can rip through 1.5 feet of cinderblock
2 feet of oak is nice but isn't going to stop it
an M2 Browning will rake the decks and kill everyone showing their heads in a porthole, making return fire nigh impossible
each penetration will produce splinters and even bullets which don't penetrate will produce spalling that will dice through the crew

https://www.youtube.com/watch?v=CBn233_zGHE