In the T-slots, engi won't work alone in the support-slots
repairer will work in both slots

The U flak is good but I prefer tahat have more ENGINER almost 10 FCS almost 10 y down
know why it have the same enginer tahat SS3 type VIIC it bad

KM SS4 will be at level 74
The gunners for the 3x 20 mm quadruple "Flakvierling" must be Huge gunners at
level 74

KM SS4 will have 8 slots total
1x BO, 2x Torpers, 2x gunners, 3x support (engi, planesman, sonarman)
when you have no gunners, then you can put some repairers on the slots or leveling
your gunners.

see link below for some extra info :
http://pawndemonium.wordpress.com/2010/01/07/all-your-veterans-are-belong-to-
us/