D A T A, on 21 April 2021 - 08:00 AM, said:
Dhs dissipation = 0.22 each per second
Lams heat= 1.0 per second if active
You have 1.5 tons available, what do you do?
A.) 1ams with 3000 ammo
B.) 1 Lams and sh*t on your own heat sinks for no reasons at all.
Of course AMS is still better than LAMS in any scenario.
The lams buff we did was good: we should have pushed further to 0.6 or even 0.5 heat, but unfortunatelly i got outvoted inside the couldron.
In that case you would still prefear ams in quick play, but maybe in faction play you go LAMS
I figured I'd swing back round to this with a couple of points.
Supposing -- without regard for quirks at the moment -- you're engaging a quadLRM80 machine, firing in couplets every half a second so's they don't incur ghost heat. It takes about 1.25s for the missiles to cross from the outside of an AMS envelope into the middle of it in IDF, so that's the amount of time your AMS is engaging the missiles. Sphere LRM20 cooldown is 4.3s, so your AMS is running for about 60% of the time. 0.6 HPS is less than the loading of a single medium laser, and that's for while you're under fire -- any loss of contact and that average heat loading goes down even further.
Secondly, the sinks the LAMS aren't using when under fire mean you can fire your primary battery more often: A ton of AMS ammo can only ever be used for AMS fire, but -- and again particularly on the Clan side where there's a noticeable tonnage advantage to going LAMS -- a heatsink can be used for everything.
And thirdly, if you bring quirks in, a LAMS benefits from heat perks and skill points, but there's no equivalent effect for ballistic ones -- no ammo increase node, for example. So even that 1 HPS figure is a bit of a worst-case scenario -- it assumes literal constant bombardment *and* no heat reduction nodes in the skill tree, which is unlikely.
And of course you've got the heat dissipation skill nodes as well. So particularly on the Clan side all of those add up to make the comparison not quite as lopsided as the initial look would suggest.
On the Sphere side ballistic's still king despite all of that because you can actually make it
lighter than a laser AMS setup, at the cost of a bit of endurance, and it's also heat-free and the same amount of Sphere heat is a much bigger issue than Clan heat, but on the Clan side I don't think I'd run ballistic AMS on most mechs.