Me too, mos 2549, Naval Shore Party, (forward observer for naval guns (artillery)) but in 69 not 66. Oh I was a Lance Corporal too. lol
Shore party was very busy with 2/1 when we made 6 "Dagger Thrust" landings off the Iwo Jima and the old Valley Forge LPH's in late 65. On one, I had to pack one of shore party's Largest dozer's with C-4 and blow it in place, when we couldn't get it out of a mud pit tank trap in an old rubber plantation. We were in and out in a day and couldn't leave it behind. A TD?? Hate to think what that was worth in dollars.