TSgt Joseph E. Snipes, 34th Infantry
Assuming you're referring to the 34th Infantry Regiment, it was an organic element of 24th Infantry Division, which served in the Pacific Theater during World War II. Company M was the heavy weapons company of the regiment's 3d Battalion. His actual duties would have been determined by his military occupational specialty (MOS), the immediate needs of his company or a combination of both.
You can contact the division's veterans association at:
24th Infantry Division Association
120 Maple Street, Suite 207
Springfield, Massachusetts 01103-2211
The association maintains a website at < http://home.att.net/~victory24/http://home.att.net/~victory24/ >. Perhaps they can put you in touch with someone who remembers him.