I wasn’t able to see the armor passive as it’s not posted to the ps blog yet, my guess is gas or fire related, or perhaps explosives, as it’s all related to trench warfare ig

Also forgot about the grenade, looking to me like it’s between a thermite and dynamite, maybe just a sticky non programmable dynamite

With one set named sapper, my guess is something explosives related.

I saw on the steam post looks like explosive resistance and being able to hold more throwables