I was watching Clive Barker's Nightbreed, which stirred a memory I had of a comic I read when I was a child.
It seemed to be a compilation issue of a few comics, involving the first bit of Akira, a bit of the first Nightbreed comic involving Dr. Decker/the button-faced mask guy and some other stories, including the one I'm trying to get figure out in this question.
Based on the age of those comics and my memory, I'd say around 1992/93 at the latest.
There was at least one, potentially two soldier characters (partners) who I think were the protagonists; I have a feeling that they were mutants/not human (potentially blue), although they could have been just heavily covered up with equipment. I have a memory of some impressive visual aid/goggles. They are armed.
I think they were trying to evade being shot/killed by an unseen enemy.
The setting was a some kind of marshland/river with reeds, a reasonable amount of cover. I get the feeling it could have been a post nuclear war/disaster event world, which is why I think they were mutants.
I have a vague memory that one of them couldn't walk, maybe didn't even have legs, and he was strapped to the back of the other.
I think the more mobile character tries to make a break across the reeds, I have a memory of a panel where he's running, almost gazelle-like with the other guy strapped to his back. At this point, I think a bullet is fired and it either completely decapitates the guy he's carrying, or at least catches him in the head.
The whole comic dialogue has an air of humour to it, even when the chap is killed, I think his partner is more disappointed than upset.
I did wonder if it was a particular Rogue Trooper comic as that seems to fit the theme, but I'm not super familiar with the franchise and couldn't seem to pin down a specific issue.