I have got the same problem.

yes bugged same problem.

If anyone still needs an answer,it's kinda simple,DON"T SKIP THE CUTSCENES.

all unlock

what about he achievements "recruit /.../.../ hero"...do you need to complete both campaigns on the same level?

same here, anyone knows how to fix it?

It didn't give me "Stonewall" and half of the Soviets` achievements...
And I only reinstalled for nostalgia + 100% achievment hunt..... -_-

Originally posted by Tanegashima:

If anyone still needs an answer,it's kinda simple,DON"T SKIP THE CUTSCENES.

I never skipped anyway and it still didn't unlock some of them.
EDIT: Looks like I am unlocking the chapter complete achievements, but not the smaller ones in between.

I know this is very old thread but did someone managed to somehow fix these bugged achievements?

+1

Did some digging, the achievements for completing chapters DO trigger on the lowest difficulty, they do NOT trigger on the Hero difficulty, havent tried any other difficulty.

For completing chapter you only need the last mission in chapter on the loweest difficulty. They trigger AFTER the final cutscene, so you have to not skip and you have to CONTINUE and not exit after finishing the mission.

The complete game on any difficulty does NOT trigger at Hero, but should (will edit if not) be triggered by completing the chapters on easiest.

The achievement is somehow related to the cutscenes after you click the continue button.
If you exit after a mission, it will not trigger the achievement, but after clicking continue, and watching the cutscene, it will award the achievement, even on hero difficulty.