Go with the stats from the Mitsuhama Chinpira (in "War!"), which is the only non-Cyborg Adapted humanoid drone I've seen, and tweak it to have Pilot 6 and separate Pilot programs to fire its weapons for it, so the main Pilot can stay on Full Defense while still shooting.
Between the 3 stock Weapon Mounts (one Reinforced), the 14 points of Armor, and the included software (Defense 4, Targeting 4, Tacsoft 3) even one of those things is going to be a handful. A squad of those things would definitely qualify as a "drubbing," possibly with leftovers.
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Now, if you want something they can win against... or at least stand a better chance of surviving... that's a different matter.
Use the Mitsuhama Otomo or Mitsuhama Akiyama from Arsenal, tweak their armor up a bit, and give them a mounted weapon.