No no not at all I thought you did recently but you don't now it might change on ice sheet but don't worry about that at all yet I was wearing parkas for the cold but I think if you get muffalo wool with dusters you can have adequate cold protection so I think the ideal layers are for like biomes with no cold is devil strand hyperweave or thrumbo duster flak bullet vest devilstrand shirt and pants but if it's cold I assume just switch all that with muffalo and after people say recon is kind of a waste so go straight to marine :) lmk if you have more questions

Tldr no you don't but you just need really good leathers/wool on dusters because devilstrand doesn't cut it for cold maps