ME262 wrong guns?

[chuckfourth]

Hi All
Well this is rather peculiar as no one but a moderator is allowed to answer my post, I guess I feel pretty priveledged, direct line to god you might say, anyway
I notice that the ME262-A2B seems to have 2 30mm MK 108 cannon and 2 30mm MK 101 cannon. I believe this might be wrong and that the plane should have 4 30mm MK 108 Cannon.
From http://www.warbirdsresourcegroup.org/LRG/mk103.html
"The MK103/101 was installed in a few Fw 190 ground-attack aircraft (wings), in an experimental Me 262 (nose), the prototype for the Ta 152C-3 (engine), in some Do 335s (engine and wings), and possibly in a handful of Bf 109K fighters (engine)."

Regards Chuck.