All right, here we go. Impressions from my playing on day one:
Issue #1: Hades vs. Gat
I did feel that the gatling was a little much, in the past, but this nerf went absurdly far. Meanwhile, the Hades, a well-balanced weapon, got a significant buff. The result?
-Hades has more than triple the range of the gat
-Vanilla Hades does almost twice the DPS of vanilla gat
-Hades has a fire ignition chance to add to its armour damage. This also affects components within its AoE.
-Hades can deal solid balloon damage if the enemy ship tries to drop low. Gat is virtually ineffective against balloon.
-Hades has no spread, so assuming that the guy on it is a good shot, it'll have a much higher hit rate than the gat (unless the gat has heavy, in which case it loses 20 shots)
The two first points are the big issues that have come up in this patch, the others are just for emphasis.
So, why would I ever take a gat? As it stands, the gun is pretty much useless. It has a more damaging, more versatile, longer-range alternative.
Issue #2: Mortar
I just don't see the point in it anymore. Like the gat, the nerf was too much. With 3 degrees (3?!?) of spread and 400m range, you need to get up in their face to have a chance to use it. That'd be fine, but there are some glaring issues: with a lot of longer range weapons getting buffed, it's extremely hard to close 400m in without taking significant damage first. Also, because of the clip size being reduced to 12, the mortar's options are a little more restricted. You can't really take lesmok to extend the range, since that's leave you with 8 shots. That barely gives you enough to kill a Pyra plus a couple of extra shots, but with the increased spread you can't expect consistent direct hits. So it loses out to other explosive options (mainly the light flak and banshee) by quite a lot.
I'll have other thoughts ready once I've played around with the guns some more. So far, I think that the Hades should be brought back to 1.3.2 numbers, and the gat and mortar need to have some of their nerfs scaled back.