For reference, current novice loadouts are:
Pyramidion A:
Gatling front right
Mortar front left
Flamethrower lower left middle
Banshee lower left rear
(recommending a flare or carro to replace the banshee, possibly a carronade to replace flamethrower, though I think the flamethrower is fine as it is)
Pyra B:
Gatling front right
Light Flak front left
Artemis lower left middle
Flare lower left rear
(Hades is tough for newbies, not sure how to fix this one)
Pyra C:
Mercury front right
Light Flak front left
Flamer lower left middle
Artemis lower left rear
(Recommend Artemis instead of light flak, and perhaps a flare, carronade, or gat/mortar combo to replace the artemis and/or flamethrower)
Goldfish A:
Heavy Carronade front
Flamethrower right
Gatling left
(this is fine methinks, maybe banshee as Wundsalz has suggested to replace the gatling)
Goldfish B:
Lumberjack front (wow, I was not expecting this :O)
Mortar right (WHAT!?)
Banshee left
(Right side mortar is totally fishy, perhaps a close range weapon to replace this is in order. Perhaps a flamethrower as Wundsalz has suggested. Left side banshee is kinda ehh as well, perhaps a flare gun is a decent replacement.)
Goldfish C:
Hwacha front
Flamethrower right
Artemis left
(Probably fine, although perhaps a gatling instead of the flamethrower would fit better with the hwacha, and as suggested by Wundsalz, a carronade on the left would be more conducive to the hwacha's mainly close range nature at the cost of medium and long range disabling power. Yes, the hwacha can be used with heavy clip for mid and long range, but that is tough for newbies.)
Junker A:
Gat/mortar sides, with the gatlings on the top deck and the mortar on the lower deck.
Gatling at the front.
(Recommend mortars to be swapped to the top with gatlings on the bottom. Otherwise it's probably fine)
Junker B:
Artemis front
Artemis top left
Light Flak lower left
Gatling top right
Gatling lower right
(What is this I don't even XD! I wasn't around during piercing flak and 850m hyper-accurate gatling days XD! I suggest a gat/mortar right side, a mercury/flak left side and a flare or flamer on the front. )
Junker C:
Artemis front
Gatling top right
Mortar lower right
Gatling top left
Light Flak lower left
(Recommend explosive guns be on the top deck and the gatlings on the lower deck. Again, without mounting a Hades, I don't see how to fix the gat/flak side. Perhaps change it to merc/flak? Maybe a carronade/flamer side instead of gat/flak?)
For all 3 of these, the front gun could be swapped to almost anything but solid choices would be mercury, artemis, flamethrower and flare.
I don't think Artemis trifecta should be in here, that would just present a frustrating experience to novices as the gun they just rebuilt gets instantly broken and their armor excruciatingly slowly plinked down to hull.
Too many perhaps used in this post.
Also Wundsalz:
Junker:
3.) Mercury front, 2 gatlings on the lower deck, 2 gatlings on the upper deck