I've had this book since I was very young and have always loved the cover painting of a happy-looking Hulk having a little disagreement with some soldiers and their big gun. No idea who the artist is but the realistic figure-work is very much in the tradition of UK war comics of the time. Superheroes were minorities in Brit comics back then so, I suppose, it made commercial sense to give the impression of a war comic which just happened to feature a green-skinned monster.
Hulk smash genres!!