Not all doctrines have or will get Offmaps, doctrine units are balanced by their price and are not in general more effective than spending those resources on other units.
So giving people extra units for having fewer games is silly, since everyone maxes out anyway and this just means those who play more are penalized even further (I don't even have 50 games on my PE account, but it does fine, and many people that do terrible have 50+ losses).
So it won't solve the problem.
Just give more benefits towards company building after games, extra PPs, bonus to XP earned, etc.
people who do terrible after 50+ games will always do terrible but with 50+ games they have much more and better stuff in theire company
when a better player on new account comes they can win against him through having more stuff in the company
same with good players and 50+ games...they even more destroy new players than when they would had a new account too
and i do not say the rewards should be better than the PP put into offmaps and ressource advantages
but the rewards should be almost even
you have always the possibility to make your company more fuel heavy or more munitions heavy than getting random basic units to even the PP difference a little bit out