As a Hazmat suit, Rebreather, etc, shouldn't help with effects like Reduced Visibility, or Movement, I don't see how it could help with weapons jams, etc. If it cannot help with one Automatic Limitation, I dont think that it should be able to help with any other.
Hazmat Suits dont let you see through blinding snow or dense jungle any easier, nor do they move the bushes and snowdrifts out of your way.