Hi there guys,
I'm playing the "manhattan" mission and I have these supports:
Spoiler:

Unluckily they disappear and I can't call them any more.
Now I have to attack the ChDkz main camp: they've a lot of units (and a T-72 too) and without arty support it's really hard (I'm playing "expert" difficulty too)
Arma is patched to 1.02.58134 version.

Thank you for your help