Before anyone jumps on that, I'm well aware of the limitations of what that means in relation to actual gameplay. Doesn't mean it can't be useful in some ways.
The setup:
I took my 2xLRM15 C1 Catapult and ran through the 8 target mechs. I did a 'short' range test (250-300m) and a 'long' range test (550-600m). For my purposes 550-600 was long enough. At that range LRM's achieve a higher arcing flightpath than they do under 300m. The path at even longer ranges doesn't change noticeably from it.
I did it with Artemis, with Artemis and TAG, and then stripped the Artemis from my mech and did it with unmodified LRM's. Then I decided to do a single runthrough at short range (250-300m) from the side, just for comparison's sake. Values are salvo's fired. 30 missiles each.
Oh, and stock armor for the variants in the Training Grounds, since I doubt most people know what they all are off the top of their head. Because some are quite short of fully armored and some are near max. Which is important to some of the noteworthy results.
COM-1B : 128 (178)
JEN-D : 128 (238)
CIC-2A : 128 (274)
CEN-A : 272 (338)
CAT-A1 : 384 (422)
PHR-1X : 352 (434)
AWE-8Q : 480 (494)
ATL-D : 608 (614)
The results:

I found it quite interesting and I think there's some useful things to take from the numbers.
1) Don't face-eat LRM's. (Duh)
Included for those who've spouted that twisting doesn't matter/help. Hogwash. It may well depend how near directly sideways to them you get... but it can help quite a lot in most cases. Noted that side-on is not exactly the same as twisting. Since the 'hips' are part of the CT and those would not be turned by just twisting.
I don't think the difference would be that major, since most of the missiles impact above that anyway. Might vary with chassis, but certainly twisting -can- make a significant difference. If you can get your torso close enough to 90 degrees to the flightpath. How close? Who knows. Probably depends on the mech. Someone else can run all the firing tests required for that if they want =P
2) Still some coring oddities appearing.
Why is an Atlas D (4 pts short of max armor stock) getting cored in 3 salvos with Art+TAG? That's only 90ish damage if all missles hit CT. I don't recall what the stock ratio is, but it should have 90-ish front CT armor. So, I jumped back in with my Cataphract X and put 2 Gauss + 2 MLaser on it.
Took 5 shots of 2x Gauss and a finishing 2 MLaser burst to core it out. 150+ dmg. So it should be taking about 5 2xLRM15 salvos even under optimal Artemis+TAG. It's taking 3.
Similarly for the stock Cat A1. At it's stock 384 armor, (More than the stock Cataphract that averaged about an extra salvo to kill) I can't see how it should be possible to core it out with 60 LRM's. Took me the equivalent of 3 2xGauss shots. (Took 2 dual Gauss and 3 bursts of 2xMLaser) to core the A1 Cat. = 90 dmg
So if splash is as small as it supposedly is now then something else strange is going on that has nothing to do with splash. Or it's broken in some way still that they aren't aware of. I thought they were going to reduce splash -damage- directly. But from what I've read it's the radius they drastically changed. Well apparently that's still not exactly working out well if the LRM's strike you head-on.
3) Shape Matters.
The Jenner is naturally missile avoidant head-on. Look at the numbers above. It has the most irregular behavior and trends to taking more salvos to bring down. And that's with less than full armor. Almost half-armor. Same 128 as the stock Commando had. Less than half what the stock Cent had. Wow.
Why? Because of it's shape it would seem. It's torso is relatively short vertically, but elongated and narrow. Like a forward neck. What seems to be happening is the missiles are aiming for it's neck, or the head, and many either passing left/right of it and hitting the legs, or missing entirely.
Conversely, it took fewer salvo's to kill it from the side, than it did for the slender profile humanoid Commando that gets cored in one salvo head-on.
The Cicada shares this to a more minimal extent. The neck being far shorter. It still took more to kill it than the Commando, even with the same amount of armor.
The Cataphract has the most potential for twisting to protect itself. Due to it's prominent shoulder ridges and maybe some other oddity in flightpath alignment with mechs. For whatever reason, probably something in my positioning, the trial with Artemis alone took -27- salvos to kill it from the side.
---------
So the Jenner gives LRM's odd fits. The Cataphract can be exceptional at twist protection. The Catapult and Atlas love LRM's so much they gather them to their bosoms in joyous death.
LRM's as a whole, still seem to have some kind of damage issue. The Cat and Atlas at least, still show something strange going on with coring out more quickly than they should be. And frontal coring in general still seems a bit too quick in almost all cases. While side impacts -can- make them look UP, as on the Cataphract. Even ignoring the 27 result. 16 x 30 at .9 is 432 direct LRM damage (no splash at all). That's 80 pts above the -total- armor value of the mech. Trying to kill it from -one- side.
OP -and- UP.
No wonder player views on them can be so varied, even personal prejudices for/against aside.
If you got through all of that, congrats. =P
Just thought I'd share the results I got. Comments welcome. But if you're going to criticize the sample-size, etc; don't bother. I'm well aware. It's not a scientific assessment.
I spent hours just to get what I did. And a lot more runs may have narrowed out a couple outliers more clearly (like the 27 salvo Cataphract kill), but not much beyond that I think. What trends there are seem fairly consistant.
Edited by Spades Kincaid, 25 May 2013 - 07:07 PM.