"Better" sounds possibly rude to you guys at HTC, but more elegant's always better, no? More elegant because this would allow players to shoot only the guns they mean to, instead of e.g. MK103 and 20mm together.
We currently have these gun loadouts below, but first - we don't have 4x50kg bomb option like the 110 has. Is this because it's somehow more/too much trouble to have it on the 410 as is, or because the option was judged not interesting enough? I wager it's the latter: not interesting enough. So... I also suggest the 410's guns options could be these - more adapted to players' interests - if adding a third trigger is not possible or not desirable.
Current AH options (bold nose, regular bomb bay):
2x MG131 + 2x 20mm
2x MG131 + 2x 20mm + 2x 20mm
2x MG131 + 2x 20mm + 4x 20mm
2x MG131 + 2x 20mm + 2x MK103
2x MG131 + 2x 20mm + 1x BK5
And then the same thing with 7.9mm's instead of MG131's.
Suggested:
2x MG131 + 2x 20mm : "Factory default", lightest package with 190D-9 lethality which is still respectable for A2A.
2x 20mm + 2x 20mm : "B2/U2 (MG 131 delete)". Just the minimum 20mm hardware (== ballast for maneuvering) you care about for dealing useful burst damage.
2x 20mm + 4x 20mm : "B2/U2/R5". 6x20 without the 13mm ballast.
2x 20mm + 2x MK103: "B2/U2/R3". 2x20 and 2xMK103, again with 75lbs or more deleted.
2x 20mm + BK5: "B2/U4". You would fire the BK5 without having to press backspace.
So basically, what we have but with MG131s deleted in the non-default configs.
These suggested configs are historical. Yep, the exact names are kind of arbitrary... but those are the notes I have from reading pretty much all Me 410 books, so I don't doubt they were fielded configurations, not projections. If just referring to these configs isn't enough... I'll go dig into notes & books for exact evidence of each config.