well
over all you are the Commander of the Airforces (Allied or Axis) (more then one Airforce to a side)
a target has a score value, plus a production value
so you have a EFAC (Engine Factory) which is a size 9 Factory, now that is going to be worth 90 points for Stat damage, but it also makes 9 Engines a day, if you knock it out, you get the points for the amount of damage done to it, but you also stop it from making Engines
(Engine and Airframe plants are the easist to figure out, there size is also how much they produce)
you have other targets
Railroads, Oil (2 types plus storage) Ball barings, Steel, Alum, and Chem
there are also Area (city-terror) Ports, Power, Uboat factories, Armaments
and then targets that help the war but not the score
Uboat pens, Airfields, Radar, V-Sites(you have V-Sites and VFAC's)
so you kind of got to balance trying to knock out the LW and knocking out the Production
plus you got your boss telling you that you have to attack Manatory targets
(if UFAC's get above a level, then you will be told to attack them before attacking anything else, which you could be told that 2nd Tac and IXth have to attack V-sites while the VIII must attack UFAC
which as the Axis Commander, it is your job to try and stop the Allies from doing so
you have 3 scores
AS, SD and TE
as it stands now, you need 75 points between the 3 to win, that may change
(AS, command of the air, your total planes vs the enemies total planes, SD how much production has been knocked out, Te, how much of the area targets have been destroyed)
there is more, but that should get you started
some targets are Critical, they may hurt other areas if they are knocked down low enough, Alum will hurt the number of planes being made