Potential idea for frost weapons in the future

I've seen lots of people suggesting a slowing effect, and that's *good* but confusion is flat out better, so here's my alternative: Make the enemy armor brittle in the cold. You could do tiers, like you do for most gas / fire stuff, where tier 1 slows enemies and drops them down a single armor level, but tier 2 drops them down 2 and slows them to a crawl.

An orbital liquid nitrogen strike could make a couple war striders in an area vulnerable to light pen, but a cryonade could make one briefly vulnerable to medium pen. Give it a cooldown similar to EMS. It makes some lesser used weapons more viable / fun and acts as a great support tool.