Someone put a 1 rating on this comic, which is rare on this site. I had it when I was 8, and I thought it was pretty bad at the time. But reassessing it 60 years later, I have to defend it a little. OK, it is Charlton: The printing is awful, some of the art is pretty ugly, and there's that weird machine lettering. The scripts steal liberally from movies like Destination Tokyo, but they are technically competent. The Sam Glanzman art is quite good, and the story about the Soviet ship trying to break the underwater cable is pretty clever. I think a 6 is fair.
Link to the book:
Submarine Attack 26