Looks like there are about 321 total credits to gunners aboard PB4Y’s operating in the Pacific. As near as I can tell from looking at what squadron was stationed where and when during the war there were no PB4Y squadrons operating in the CBI.
You may wish to look at
https://www.history.navy.mil/researc...ld-war-ii.html
“Air to air claims and credits for Navy and Marine Corps patrol type aircraft during World War II”
You’ll find LTJG Sheldon Sutton as PPC of a VBP-117 PB4Y appears seven times with credits falling to his gunners:
On 12 Dec 1944, 1 Tony near 12
°-23’N 120
°-59’E
On 24 Dec 1944, 1 Jake near 21
°-30’N 122
°-40’E
On 24 Dec 1944, 1 Pete near 21
°-30’N 121
°-03’E
On 5 Jan 1945, 1 Jake near 15
°-55’N 119
°-35’E
On 5 Jan 1945, 1 Jake near 15
°-30’N 119
°-35’E
On 8 Jan 1945, 1 Jake near 11
°-30’N 109
°-15’E
On 21 Jan 1945, 1 Jill near 26
°-55’N 128
°-00’E
The only fighter on this list, from the lat/long noted, went into the water off the SSW coast of Mindoro, about six miles NW of the present San Jose Airport.
Likewise the other six locations are all over water.
Regards