1. Added damage types across the boards.
2. Added arsenal size scaling and miniaturization exception.
3. You're ignoring the fact ranged mecha weapons get to add Dex mod to damage (1,5 times if you don't use other ranged weapons, x2 if it's heavy), plus mecha maneuver/stance synergy and whatnot.
4. If I wanted a boring pattern, I would've written a boring pattern and posted it instead of writing down individual weapons.
5. Ask your DM since they're optional rules that aren't even in the srd. In my case, they don't interact, point.
6. That too. Melee having higher damage output than ranged is a feature, not a bug, since otherwise nobody bothers trying to get in close.
1. Cool.
2., If mech weapons deal more now it'll probably replace simply increasing basic weapons unless you ran out of Arsenal space and the ranged side of Arsenal should catch up some too.
3. No I didn't, the +26 modifier is +10 Dex & +16 for Mightyx8 and the +36 Modifier for the Railgun is by applying Dex twice. I did however miss the x1.5 Rate for same weapon
type, I thought using two Built-Ins, or two Antiship Sabers, or w/e & etc, meant no same weapon bonus. That'll tweak a few numbers.
4. Ha
Seriously through, by switching dice back and forth, kind of like you already did, you can hide the DPR gains for each level being an even scaling increase. Plus all the properties can have a specific weight they add to the balance, you can produce tons of unique variations even through mechanically each one is only better than the other if the circumstances favor it and the never level up is almost always better than the last (specially giving the link property, eg +7 dmg < x2). See also #5.
5. They are "optional" rules because D&D games are set in the 1100s or so, not year ummm.... 5016?
A WoTC official d20 product built off the D&D 3rd Edition ruleset does over this area, and yes Modern has it's own public SRD. D&D registers in as PL3 while Eberron, which stole Modern's Action Point System, registers in at PL4. Are current technology level is supposed to be PL5 and mechs start showing up I think are PL7 and higher.
To call back to #4, there are literately dozens of weapons and equipment split through the PLs and there are a lot of unique weapons to be found. Like beam swords even show up in PL8, but even cooler? There is a gravity gun that use alternating attraction/repulsion to rip their targets apart and that sounds awesome! It's worth knowing Modern's system if you plan to build any type of future campaign and it gives you a ton of content to rip off, like do you have a targeting system that reduces concealment? Why not just steal the entry text for the Mech's X-ray visor? How about in your Star game why do we refer to are comm devices as cell phones instead of pipboys or omnitools? Because
ambiguity. No one has asked, nothing has been written. A shortcut? PL8 tech is on the table, ask your DM what you can afford. There is a massive amount of world building content at your fingertips that just wants someone to shed some light on it.
6. The problem isn't Melee>Range and don't be confused with Ketaro's thinking it is. But Ranged Arsenal didn't (past tense since you altered a few things so a new crunch needs made) keep up with
anything. You could make pretty viable ranged Built-Ins or increasing the size of basic weapons, just not if you were using Arsenal. I'll have to take a look at the changes tomorrow through and see what all was fixed.
Edit - One thing that may help is standardizing progression.
So like the Antiship Sword is 9d12 which of course appears no where on the table. You
could use the de facto standard of +2 Size double and round down which means Large should be 13d12 (84.5 avg). You
could also claim that since nothing converts into a d12 you need to switch it to the standard d6 or d8 and since 1d12 increased by one Size is 3d6 that comes out to 27d6 (94.5 avg). Perhaps a little less tactful since A) it deals more this way. B) Everything becomes Xd6 or Xd8. So I suggest the former.