Decisions, decisions....
USS Washington? Iowa? Missouri? etc.
OK, uh...Republic P-47 (less range than the P-51 but tougher, and more heavily armed)
M26 Pershing .....ok, ok
Personal weapons, the 1911A1, of course, but for a long gun, hmmm...
The old guy I am today would want a lighter weapon, but I am reminded of a story told to me as a youngster by a man who was there.
He was a SeeBee (CB) he was part of a crew building an airstrip on some "green hell in the South Pacific", and he and a few others had been pinned down for about an hour by a sniper in a palm tree. They had M1 carbines, and shot at the sniper, who hid behind the tree. He hadn't hit anybody yet, but it was a matter of time, and they couldn't get him with the light carbines. After what he said was a looong time, a Marine BAR gunner came by and asked if they had a problem. A Japanese bullet ricochets off the bulldozer. "He's in that ******* tree!" The BAR man leaned into it, and fired off about half a "clip". Jap rifle falls to the ground. No problem!
So, if I were a young man, I would choose the BAR. And I would leave the house clearing to somebody else. Or, use the 1911A1 for that.