@muvinbird I was in Vietnam at age 20-21 for 1 year. I was not a sniper but in a small light infantry unit.
Where you fought the cold, we fought the heat. Where I was in VN was 1-2 and 3 canopy jungle with millions of bugs and other things common to jungles, very hard to move around in that shit and be quiet but we learned to do it. The mosquitoes, leaches and other parasites were horrible as well as the rats and snakes.
I think I would rather fight in that enviroment than the cold and snow you went through.
I know all about living with your rifle and ammo. I had mine with me at all times, either slung, in hand at the ready or laying with me when I tried to sleep. I had Colt M-16A1 #866323. I will never forget that number. It served me well, I took care of it and it took care of me. The only failure I had with that rifle was during a large ground attack when I got it too hot and the bolt welded to the breach. I just grabbed another rifle that was no longer being used and used that. Our armourer put a new upper on it for me and I sighted it in and finished out my tour with it. I wish I still had that rifle or could even hold it for a while but our Army doesn't work that way. I had to turn it in when I left.
I had 4 years on you as to age and I agree, you were too young as I know I was too young to see and do the things I did.
I fully understand about losing friends and as hard as I try to forget, I am not able to do that. Parts of it stick with you forever.
I stay in close contact with quite a few of the guys I served with but our numbers grow fewer with each passing year.
At your age I don't imagine many of the guys you fought with are still around but I hope there are some.
Regards, FM