Cover bonus is too high IMO, but other than that the conscript buff is balanced. It makes more sense in the context of the unit to increase the squad size than to give them an upgrade, and it also synergizes with their abilities.
Part of the discussion needs to be on what the upgrade is worth/ should provide. Should the upgrade only make cons a better chump unit for capping and recrewing weapons? Then they should probably reinforce faster but not have such a cover bonus. Should they become a very effective squad in green cover but remain shit outside? Then they should retain the cover bonus and beat other baseline squads in cost effectiveness when in cover.
I like the theme of being good at cover and shit outside, since they build long sandbags, have triwire mines and molotovs preventing units from closing in, very good synergy. And oorah can be used to get to a cover faster. This cover bonus is what conscripts needs, even the description of conscripts says "good in cover". I really don't care about the rest, the cover bonus need to stay (maybe decrease to 35%)