How do i call in support?

[MickeyMouse123 10]

I was playing the artillery and sniper showcase in arma 3 beta and it said to hit 0-8 to call in support. I did this and chose support but after i chose support the option menu is blank, thus not allowing me to select support. How do I call it in?

[Grommett 10]

With this mission, When pressing the 0-8 key it will bring up that dialogue box - I couldn't find anything under support either, However under another option (The name escapes me at the moment it was the second last) it will have the mortar and helicopter support options available for use.

Hope this helps.

[mikeeagle23 10]

Aftre you reached the observation post the support is unlocked and 0 - 8 should lead you to a menu where you can choose between Bravo, Echo, Arty and CAS...