First off... I love the Mossie and thanks HTC for making it!!! I know this is the dumbest thing to say, but flying this just feels right... It feels like the way I imagined a Mossie to fly.
About the bombload though...
It's too bad... The Mossie is a coffin if ya wanna try and fight in it, but it'd be a great Jabo AC. The problem I'm having is that I am really starting to debate taking the Mossie for Jabo or going back to the F4U. The Mossie just doesn't compare if it can only carry this small load.
Having the proper (or at least the the most common version's - by far) loadout for the Mossy would at least put this plane in a category where it would make sense to take it for an attack role over planes that weren't as well known for this role.
As it is... you wouldn't choose to use it for A/A, and there really isn't any reason to choose it over the F4U, P47, P38 etc. for A/G... when the latter planes can take more ord *and* do A/A. The only distinction this plane might have had is sadly not present... and I'm just not sure why it would be limited like this.
On another note... I thought the Mossy was great on gas... I haven't done any testing or anything, but I'm running out of gas a lot...