he likely reason for that is they're not drawing a lot of attention - enemy AI will prioritize/reprioritize based on who's laying down a lot of hurt.
Bruh... it's literally my highest DPS 'mech atm. The AI will always focus on the player, unless another target is on their sight, and you can easily steal aggro just by passing briefly in front of their previous target, you can do that with a Locust. I always pilot the thing (SH) myself, the AI is too braindead to understand proper hit & run and ambushes.
Like, if you roll in a Kintaro-18 stuffed to the gills with SRMs you will very quickly become enemies' favorite person ever
Well, imho that's the wrong mech to play hit and run SRM boat. Those extra 20kmph make a load of difference when lining shots or running for the cover of an hill. AC5 gives you a solid mid-long range option, since it still one shots Vtols and two shots the heaviest crawlers, on a Kintaro you'd be forced to sacrifice a slot for LRM or rely on lancemates for distant targets, which is perfectly doable if you like to play that way but I like my platform a bit more versatile, I can post my loadout if you wish to try it yourself but it's pretty easy:
AC5, SRM4x3 (you could use a SRM6 but I prefer to carry more ammo), double sb small lasers for convenient deforestation (remember, the true 'mechwarrior pollutes, defiles and generally hates nature), a single Double HS, one ton and half of AC5 ammo, one and half of SRM, 2 tons JJ. Rest is armor, nothing fancy.
You get a sturdy platform, marginally slower than a P.Hawk but capable of hitting much harder. You need no fancy Artemis in order to hit with a full salvo because you're fast enough to catch on any target and stick those pumped up torsoes up their asses, when playing this guy, I always lock arms movement for better torso control and use the arms as shields, I don't really care if the small laz0rs are shaved off. It never happened but that's the idea.
It probably wouldn't work in MWO but here, vs AI? Lol! MW Merc is all about fun crazy builds and one-trick ponies, I love how the gameplay radically changes from one platform to the other. Although I still painfully remember, back in the old days of mercs, when we could mount Longtom artillery on Madcats, good times...
If you take that Centurion and shave down the empty left arm to 16/32 to round off tonnage, and all your other components have full armor, the AI will focus that nearly-useless arm (this makes the Cent pretty solid and makes having an expensive weapon in the right arm very workable, actually).
Interesting, how about front and rear? Can it also differentiate between those locations? I've read some people suggesting reducing some specific rear slots to 2 and load everything else on the front, on some chassis. Iirc it was about the Hunchback RT but I could be wrong and it could be an outlier