Ask Gunners to hold their fire

Not suer if it was in IL2, but I'd also like a command to tell the AI/online wingmen to regain altitude or get as much as they could (maybe add presets). It would be useful when you know that enemy fighters are approaching. I find that in SP my wingmen would end up skimming the ground after a dogfight and as soon as some new enemies shows up they were dead meat. Issuing a "on my six" command isn't always appropriate for every situation, but it usually works for most.