I supossed, then i think that the rule is very restrictive, and we are moving from one side to the opposite,from helicopters being deadly killing tank machines to being near harmless flying birds.I think its better limit helicopter's power using worst ammo,or adding more air defense units,or limit their resupply times,like addind a simulated "air base" that ressuply helicopters only after 15 mins.
Im going to explain the ridiculous situation that happened last TGIF.There was some enemy tanks in a objective at the top of a hill, and my helicopter was not able to engage them because my height was too low, so my only option was get very close inside the top of the hill to engage(i will add picture later for clarify this).
subir gif
The problem with helicopters detecting everything can be solved using no enemy map contacts, as we usually do in TGIF.