Unless you want to form up on the ground without wasting fuel.

if there was fuel to be wasted... fortunatly there's a refly button, gives u a nice, fresh, tank of gas, so it would still save u some time forming up on the ground by not having to start an engine... not as if u couldn't turn it off, even if you didn't have to start it :P

I'm currently working my way through the Wicks v Dundas campaigns. Since installing the last but one patch and the latest one the missions launch with engines running. This was an unintended consequence of the patches but given the problems discussed probably a fortunate one.

and wait till with the sequel the russian winter temperatures will most propably appear on some maps..........
at least a hit box in the difficulty settings (warm engines yes/no ) should be available!

Be careful of what you wish for, you may see a dumbed down CEM in sequels...luthier already saying no body wants/uses, and I don't think he was talking about clouds.

+1 great idea OP

Warmed up engines should certainly be an option.

While i have NO issue with spending 5 minutes waiting for my engine fluids to warm up prior to taxi as the spit 2a currently has, obviously the engine should be able to start within 30 seconds no matter what.

I prefer warmed up oil & coolant, but without the engine already running. More fun to start it myself. Do as in RoF!

Oh my god...

In finland they made small "campfires" under airplane engines to keep them warm and blanked over engine cowling to keep the warm inside... And after they got 109 they cooked small amount of the oil in "pots" so that "cooked oil" filling the engine would warm it up for ignition..

They even thinned cold oil with gasoline to get it running if they had to...

They did the same with the guns as well :o