The Flea's uncommon FLE-4 model packs a powerful punch for such a tiny ‘Mech but carries extremely light armor. It relies on speed and hit and run tactics to keep it alive, but one good hit is all it takes.
165m walk / 275m sprint (6/9 or 97 kph)
166 internal structure
425 max armor
3 small arms
9 free tons
2 integral targeting baffles providing +1 hit defense each
The best strategy for this Mech is to never use it. However if you find yourself in a circumstance where you have to use this keep moving and remain as far from enemies as possible. As the description says one good hit is all it takes. Removing all the support weapons to mount more armor might help a tiny bit with survivability.