I'd like to add something if this hasn't been discovered already. In their original notes from one month ago, they stated that medkits would "heal all squads in a radius around the squad that picks up the medkit" (posted here, check "General Changes":
https://community.companyofheroes.com/discussion/244965/spring-update-balance-preview-changelog ).
That change was later removed in their final version, but it's still there in the game. I took some video of it here:
M3 Halftrack (USF Mechanized Company):
https://youtu.be/-crQgJvZcxo
Sturmpioneers:
https://youtu.be/2DU9k7SuGek
Relic Entertainment
cblanco ★ 
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VonManteuffel 
Heartless Jäger 
