Heavy tanks – survivability + firepower / mobility
Medium tanks – mobility + scouting / survivability
Light tanks – scouting + mobility / firepower
Tank destroyers – firepower + scouting / survivability
Arty – firepower + scouting / survivability
Personally, I feel as though every other class (except maybe arty but who gives a shit) have pretty good options for their 6th field mod, except mediums. I do like to sometimes use hardening / coated optics on a tank, but if I want everything boosted, then I need to be running a mobility piece, hardening / coated optics / cvs (if you're a QB fanboy), and then rammer, meaning I have to drop my v-stabs / improved aiming. I feel most medium tanks would be much more suited to having firepower somewhere in there. Every other class gets a firepower option somewhere except mediums.
Source: https://www.reddit.com/r/WorldofTanks/comments/uj3nnb/6th_field_mod_on_medium_tanks/
