except Canonshop you're missing something, something important.
You don't HAVE to fire an UAC in ultra mode. And you can fire all day long in single shot mode. the Ultra mode just gives you the ability to, in a pinch, double the firepower of your main gun. you seem to be thinking that every mech, vehicle etc with a UAC or RAC should be firing the gun at double rate every round, and frankly if you think that I'm guessing you don't win many table top games. With a UAC you use the mode selectively situation dependant, because sometimes yes even in a Main Battle tank, you just wanna throw as much lead down range as fast as possiable. because at the end of the day a MBT is still a TANK, and they tend to have short live spans when the heavy mechs tank the field. Even if the tank survives it could swiftly lose mobility via tred damage and if it loses a tred being able to put out increased damage when a mech blunders into it's view? THAT is worth while. because if your treds have been shredded your going to need to put as much power into a target in as short a period of time.
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flip side, Brian-you lose mobility AND you lose the ability to bunker all at the same time,or in the same turn. yes, you 'don't have to' fire in double mode. but you're paying the extra mass, and reducing SOMETHING for that ability you're hoping, in a pinch, will save you instead of screwing you over.
This is the MASC argument all over again, in a way. BUT, what you're ignoring, is that I'm not LOOKING at individual duel performance. If I want a duellist, I'll take a heavy or assault 'mech armed with CERPPC's or Gauss rifles.
This has to do with teaming. The guy on your left has an unreliable weapon that MIGHT do extra damage while running him out of ammo faster, or it might jam so badly it can't be fixed in the field,
and you don't know which it is, except that his ability to lay down fire is what's keeping you alive.
NOW make your choice.
shots you can't take, don't do damage.
Shots you fire on burst where the dice go low instead of high, don't do any MORE damage than firing single.
I look at tanks maybe a little differntly than you do, Brian. I look at them first in terms of "How does this work with the rest of my force and my tactical and strategic objectives?"
Typically, when runnign combined arms, you EITHER run disposables that, as long as they do SOME damage, can be tossed away, OR you're using something that is intended to sustain.
the disposable only needs to weather a couple hits, it's INTENDED not to endure for long. Think "Hetzer".
Ultras work GREAT on disposables, because the potential damage outweighs the need for endurance-they're not tough enough to bunker in the first place so losing that capacity is not an issue. Other disposables fit the same way-Scorpion, Vedette.
Then you have your nasty support units. Thse are meant to be damaging AND a threat. To do that, they have to still be useful when their tracks are shot off, because they're a fire-sink with a turret.
THAT role requires endurance, and if it's a lump of armor that can't shoot, then it's not worth bringing.
If it can't sustain until the ammo's gone, or if it runs out too soon, it's
also not worth bringing.
fitting into that second grouping, is units that are there to suppress, degrade or destroy the enemy's supporting arms.
ADA capacity is GOOD, anti-infantry dusting or the ability to crit out enemy vehicles at range? also good. That's stuff the 'mechwarriors don't have to worry about, it's stuff that the owner on the other side DOES have to worry about.
The fact the gun that has the broader application (means "can fill more jobs for my limited spacelift for longer") is combined with "Doesn't jam itself so badly at random that you have to pull the turret to fix the jam"?
One of these two is a significantly better
tool of war than the other, because it provides more strategic and tactical options, and thus, advantages, and does so
more reliably.
hence why I tend, despite the larger POTENTIAL damage, to put the Ultra at the BOTTOM of the list, just above the HVAC or Heavy Machine Gun-because it only offers an unreliable higher damage potential, but carries the drawback of being grossly unreliable and burning through munitions faster for that (Unreliable) higher average damage.
The Standard can use ammunition types that give it an advantage, and does so reliably. The LBX uses two types, but does so reliably
and weighs less in the class 10 configuration we're talking about, while having a better curve against MORE TYPES OF UNITS than the Ultra, which is important if you're up against someone who knows how to use VTOLs, other tanks, infantry, or suits to multiply the power of their 'mechs.
Stick an Ultra-5 on a 25 ton track you don't really care if you lose? yeah, do that, stick an Ultra on a hovertank or light/medium design intended as chaff and popcorn?? sure.
but don't waste the armor plate if you're going to stick it on an MBT unless that MBT is just as cheap as you can make it with an ICE engine and barely enough armor to count as armor.
it's the CHEAP STUFF that needs that 'run away gun'. if you're going to use as much plating on a track as the Patton uses, and a fusion engine? you want the gun that goes 'bang' every time until it runs out, and has some endurance, because there's a TACTICAL DOCTRINE behind and underlying the rest of the design, and it's not winning duels on Solaris.
I look at this and ask 'what's the role?' The Rommel and Rommel/Gauss is a headcapping 'mech and tank destroyer meant to be reactive. The original Patton was a multirole support machine for 'mechs and as a secondary in the defensive line as a mobile bunker-enough punch to present a threat that can't be ignored, enough plating that it can preserve that threat posture for quite a while before it ceases being useful (Whether moving or not).
what's the role of the Ultra version? Filling Mai Tais at the sales officer's retirement party and putting hookers through massage school, because it's already outmatched by a stablemate in the role the main gun forces on it, of being an UNRELIABLE 'mech and tank destroyer without that headcapper capacity, that by definition doesn't have endurance you can actually rely ON to cover your other units.
the Patton Ultra doesn't provide a significant, reliable advantage over the base 3025 model, but it costs more to use, maintain, feed, and care for.
A Patton with an LBX, on the other hand, CAN do more jobs than the base 3025 model, while still doing the same job, and does both in a superior fashion
reliably, meaning the 'mechwarrior planners can actually say "okay tankers, I'm goig to watch the enemy instead of monitoring your status because you got this..and I can actually
make a reliable plan around it, with reasonable contingencies if you do your own jobs right."
This is the same reason we didn't see the allies stuffing 90mm guns into Shermans, and why the 76 wasn't used on D-Day...and why germanophiles get really upset when you trot out the maintenance and downtime stats on Tiger 1, Tiger 2, and Panther.
Straight up comparison outside the duelling fields of Solaris, the LBX is a real upgrade for a tank's main gun on too many levels compared to the Ultra.