Savotta jakaari S + 2 4L side pockets (potentially another 2 4L or 3x4 or 3x3 on the front) vs savotta kahakka 25 + 2 4L pouches?
I'd be using it as an assault pack as a motor rifleman, both hot temperate and very cold conditions.
I'd be carrying a puffer or lvl7 jacket, spare socks, ammo, medkit, batteries, food, water, poncho, rain pants, maybe some additional random shit they give to me etc