G1: Germany has moved 4 of its Atlantic submarines to SZ109 to attack the UK destroyer and transport. UK has scrambled 1 fighter from Scotland, 2 fighters from London. France has scrambled 1 fighter from London.
Are the following assumptions correct?
The German submarines will not use their surprise strike ability because of the presence of an opposing destroyer.
The Allied fighters will be able to attack the German submarines due to the presence of a friendly destroyer.
The German submarines will not be able to hit the allied fighters due to being submarines.
The German submarines can retreat without killing the destroyer.
The German submarines can not submerge and remain in SZ109 without killing the destroyer.
The German submarines first hit must be applied to the UK destroyer.
The German submarines must roll at least 2 total hits across any number of combat rounds before the transport is destroyed (the transport is not killed automatically just because the destroyer was killed).
If the German submarines destroy the UK destroyer, the defenders all roll their defensive roll for that combat round as if the destroyer were still there (for example, the fighters can still hit the submarines).
If the German submarines destroy the UK destroyer and the UK transport, combat is effectively done as neither side can hit any targets on the other side.
And did we conduct this combat correctly…
4 German submarines scored 3 hits. UK destroyer and transport selected as casualty. No remaining valid casualties.
UK rolls for destroyer and 3 fighters, France rolls for 1 fighter. Scored 1 hit. One German submarine is destroyed.
Combat is over, fighters return to the territories they scrambled from, UK destroyer, UK transport, German sub removed, 3 German subs left in SZ109.