CAP = Cover Air Patrol
With CAP your planes are able to attack incomming enemy fighters and bombers BEFORE they hit your land units/factories/ships.
When your fighters are on waterfront property, and friendly warships are in that sea zone, you must declare if your fighters are flying cover air patrol for the land territory or the adjacant sea zone.
Fighters on cover air patrol roll as defending fighters against enemy fighters invading. These fighters also roll as defending fighters. (ie, both sides roll to hit on a 4 or less. To simulate dog-fighting and to make the battle faster…if you roll to hit on 1s or less you’ll be there all day rolling a 10 fighter vs 10 fighter battle!)
Defending bombers CANNOT fly cover air patrol.
Cover Air Patrol must penetrate all attacking fighters before they can engage enemy bombers on SBR. If enemy fighters are supporting an invasion, then CAP cannot engage bombers on SBR, they are otherwise engaged on the “front lines.”
If you have the Jet Power technology, your CAP attacks at a 5 or less to hit.
CAP engagements are determined BEFORE land combat. Any surviving fighters may engage in the ground campaign or may retreat. (Yes, defending fighters can retreat up to one space.) If there was no CAP engagement, then defending fighters may not retreat.
CAP occurs BEFORE anti-aircraft fire. (It is assumed the fighters went to engage the enemy and then what was left is completing the attack run)
Purpose of the house rule:
Primarily to deter British/American SBR Campaigns on Germany and force an invasion.
Secondarily because what moronic air force general is going to let his fighter fleets sit on the tarmac while the capital cities go up in flames?
Likewise, what moronic air force general is going to let his bomber fleets get shot down when he can launch fighters to protect them.
Basically, this is a good way to tie up air force assets, encourage the construction of air force assets and utilize them in a more meaningful fashion then just escorting infantry on attacks to trade land or defend territories.