Where is the "Research of Helicopters by playing air vehicles" option?

[Tanagram]

Thanks

[ArtemisHunt]

It's a tickbox at the bottom of the window. In-line with "show vehicle BR by AB / RB /SB"

[Sierra-Six-Four]

3800h and can't figure this out on his own....and im still surprised how so many player still can't do even basic things in this game...

Edit: "Research of Helicopters by playing GROUND vehicles" this don't work with air.

[Tanagram]

Originally posted by Sierra-Six-Four:

3800h and can't figure this out on his own....and im still surprised how so many player still can't do even basic things in this game...

Edit: "Research of Helicopters by playing GROUND vehicles" this don't work with air.

[biomike]

You fly the helicopters, thats the air vehicles you use to research them

[magazine2]

Hi, you can't research helicopters with aircraft, only with ground vehicles. The option as others have said already is "Research of helicopters by playing ground vehicles" in the research tree.

[Tanagram]

lol it was a bit of a joke post but thank you :)