So much ENVY in the air

The main problem with this bullet setup is that the higher hp isn't as good as you might initially think. You have to factor in the shield.

Let me compare the two bullet setups: the one I current use and the lava scope one that is becoming popular.

Setup A
-------
Galaxus A
Rino Boots
2 x Needle Blaster Mark 2
Wipeout Mark 3
Antares
20% energy shield
+10 Multi Resist Module
2 x +70 bullet modules
+84 hp module
2x +21 regen modules
53 damage charge
1 kg teleport
Mythical physical hook

Setup B
-------
Lava Scope
Rino Boots
Mythical Meteor
Saurus Rifle
2x Needle Blaster Mark 2
Wipeout Mark 3
Antares
15% energy shield
+10 multi resist module
+21 regen module
2x +65 bullet modules
2x +84 hp modules
19 damage charge
1kg teleport
??? hook

With Setup A you have 95 energy and 66 regen. This is generally enough to sustain a 20% energy shield, especially if you pair with a +25 resist kit. What is does is effectively turn 627 hp in to 783. With Setup B you have only 90 energy and 46 regen. At best, you can use a 15% shield with this setup if you use a +25 resist kit. This means 659 actual hp equates to 775. 783 > 775.

Cooling is generally equivalent, 68 vs 71. The 110 vs 150 heat capacity does give set up B a nice edge but once your capacity is filled the first time the only thing that really matters is cooling. Setup B's advantage here generally wouldn't even amount to saving 1 cool per match so it's mostly a non-issue.

Regen is a big advantage for Setup A beyond just the shield. Against energy mechs, Setup B is going to be taking massive damage due to hook/teleport draining mostly everything and the energy mech having a lot more extra energy turn in to damage.

The key to any bullet setup is to keep your enemy is range of your machine guns. Everything else is just a support weapon. So in range 2-4 why do you want a weapon with knockback and moderate damage? You want those machine guns blazing in range 2-4! Yes, moving your opponent around is good but setup A better accomplishes that with a 2 use hook that does decent damage as well as a high damage charge.

Also, a high damage sword and high damage/low hp legs are a little redundant. How often is this mech going to start a turn at melee range with 2 action points? The answer is pretty much only against energy mechs and against them you aren't going to be using that sword. The sword is nice for those kit/shield matches where you run out of bullets but frankly that limited use doesn't justify spending 36kg on it. Especially when your legs do nice damage.

Back to the keeping your opponent in range of your machine guns. Setup A has two uses of its hook for two hook/stomps which leave the opponent at range 2 as well as a 53 damage charge which does as well. Setup B's specials are basically sacrificing an action point to move the opponent because they do so little damage and they have one fewer use due to the non-mythical hook.

Those reasons are basically why I choose Setup A over Setup B. And, as the videos demonstrate, it generally has better results (my win rate is currently just under 98%).

That is easily my favourite non-myth build.