The loadout in the hangar for the P51D reads:
4x50 Cal M2 270 rpg
2x50 Cal M2 400 rpg
In plane, the counters read:
Pri: 1340
Sec: 540
It looks as if the the two primary guns, and 2 of the secondary guns are crossed.
In the past, the default primary was 2 inboard, secondary was 4 outboard. The counters were 800 and 1080 for primary and secondary respectively. Now we have a primary of 4 inboard, and secondary of 2 outboards, and counters 1340 and 540. Please set the primary and secondary guns as they were before.
Thanks,
Gunner