Ten giant mecha (Balams) against ten electric not-godzillas (Erginus). I'm just an infantryman (well, more of a FAC) tasked with keeping giant insects off of the robots, which are cripplingly overspecialized and have no guns. Oh and I'm playing on a higher difficulty than I usually do, so my equipment is underleveled. For the first run, I call down a tank for myself, and run around doing my job killing the insects. Eventually a giant(er) mutant Erginus comes, and command gives me a Balam of my own. I fight the mutant for a long time. Unfortunately, I lose, and thanks to the difficulty level the NPC Balams lose as well (albiet with only one Erginus remaining). I summon a new tank, and fire all 35 shells into the normal Erginus. Then I get back in my old tank and fire its remaining ammo. The 60 some tank shells had no real effect, so I get out and start firing my sticky grenade launcher; I get stomped to death shortly after.
For my next try, I decide I'm going to become a giant killer. I forgoe a personal defense weapon in favor of equipping two laser designators hooked up to orbital kill sats, and for my vehicle I go with a Vegalta (a walker that would be described as giant in any other game, but is tiny in this one). This particular Vegalta is supposedly anti-air, with dual missile pods for taking out multiple small targets. However, it has two gatling cannons instead of the usual one, meaning its damage potential against a giant target that cannot be missed is absurdly high. The giants punching each other are joined by two blue lasers from space scything through the battle. The lasers have to be moved around to follow targets and deal continuous damage. If I keep both the lasers on a single Erginus for their entire duration, then earn back both lasers via kills and do it again, and then empty most of the ammo from the Vegalta's cannons into that same Erginus, I can score a kill. Armed with this power, I manage to turn the tide in favor of the Balams. Occasionally Erginus try to stomp on me; at one point one attempts to charge my walker only to fall down dead in front of me.
When the mutant Erginus comes, my Balam is joined by a swarm of 5 heavily wounded allied Balams. Unfortunately I get separated from my allies, who move at the same speed as me in this big blob and are too dumb to wait. The mutant manages to destroy
all five remaining Balams on its own. This whole battle has taken like 10-15 minutes, and I know from experience that I have to stunlock this thing (that moves both randomly and way faster than me) perfectly or I pretty much die. Preparing myself for a disappointing loss, I slowly lumber forward. Balams have one attack combo, which is jab jab haymaker uppercut. Last two hits stun. I miss the haymaker when the mutant is leaning back in preparation for an attack, and then as it lunges forward I catch it right on the jaw with an uppercut. It instantly falls over dead, having had almost no health left.
Earth Defense Force 4.1, it took my a lot of tries to win this. Not sure why I didn't just play it on normal or hard difficulty like all the other missions