A couple of questions on the game engine mechanics ...

[Strela]

1. For direct fire units, yes there is an entry in the parameter file that determines degradation with range. There is no impact on indirect fire (as there should be) due to range.
   
2. All displayed losses or disuption to the air unit is factored in before the final attack against the ground unit is made. You can only see the status of your aircraft (ie. number of planes) when they again become available in the air dialog.
   
3. The specific mechanism for this is the recovery / replacement percentage that is built into either the parameter file or OOB file. This is different to reinforcements that are built into each scenario.
   

David