I've always had a strong affinity for the Flea, and was VERY amused when my name popped up as its notable pilot in TRO:3050U. If I'm gonna get into a book under my real name, it needs to be in something weird- well, what's weirder than a war-crime version Flea?
Thing is though, for all the head-to-head comparison with the Jenner here (seriously? A Jenner will eat a lot of mediums for lunch!), the Flea isn't really intended for that job. You don't kill other Mechs- at least, not in most versions. The FLE-4's laser gives it a surprising punch, but it can't take a hit back without crumpling, so it's not really a great Mech for the job. Most versions though... as an anti-personnel machine, it shines. It's great for the job- simple, rugged-ish, no frills. It doesn't move all that fast- not Urbie levels of slow, of course, but not FAST either- it doesn't need to, personnel aren't going anywhere in a hurry. Jump jets? Nah, not really a requirement for this job- handy, but not needed, and on a Mech this small that's a lot of tonnage. Weapons? Generally optimal for the job- MGs, flamers, small lasers, exactly the kind of thing for-
...you may notice that I'm using the term 'anti-personnel', not anti-infantry'. Because if you need a Mech for urban pacification and riot duty jobs, getting angry crowds to disperse- like it or not- a Flea is almost perfect for the job. It doesn't have good armor- well, an angry mob doesn't usually have support-weaponry or shoulder-launched missiles, so you don't NEED heavy armor. You need a couple of big flame launchers and a flurry of bullets to let the crowd know that the concert has been cancelled, MOVE ALONG PLEASE. In combat, yeah, it's great for dealing with infantry- keeping it around other units that focus more on armored units means your Flea now acts as a handy bodyguard against SRM-armed infantry, or evne worse the jerks that crawl up on a Mechs' legs and plant satchel charges. Those guys suck- a Flea deals with that problem nicely. But it really is a rare Battlemech that shines less as a wartime unit and more as a non-combat Mech (if riot duty qualifies as non-combat... you know what I mean).