Greetings from Fort Worth, TX, Kathleen Wireman !!!
I am not at all sure of my facts concerning your inquiry, but here is my "best shot".
During the occupation of Burma by the Japanese, there was a small cadre of people who actually served as spotters both of over flights of aircraft, and of Japanese ship convoys conveying materials and replacements to various sites. This may have been your dad's role.
There was a group identified as The Kachin Scouts, which was a unit composed of British, American and Burmese personnel, which was an all-purpose commando group whose role was to find and destroy Japanese defensive positions ahead of conventionally trained troops and engineers. Don't know, of course, but he may well have fit this role as well.
It was reported that the Kachin soldiers knew the jungle so well that they could spot camouflaged Japanese positions that were virtually invisible to Westerner's eyes.
This era centered on the building of the Burma Road, and was most critical to the outcome of the war in the Pacific. My late brother-in-law was a member of the Army Engineer unit which built the road.
You may remember the movie , FATHER GOOSE, starring Cary Grant. His role was similar to that of your father's. Check it out.
With best regards,
Louie Franklin Turner.
QUESTIONS :1.Are you located in the UK ? 2.What is your dad's name, for I have an excellent text which identifies dozens of men involved in the CBI Theater. (No WIREMAN listed)