Pretty much a refined version of my original first build, the "Lupus" variant of the Astralis serie is a melee combat mech that relies mainly on pressuring the enemy with multiple weapons in order to quickly build the stagger meter and deal massive amounts of damage.
A pair of BML-G3/P05ACT-02 shoulder missiles work really well for building the stagger meter, along with the LITTLE GEM bazooka.
Once the target gets staggered, the HI-32: BU-TT/A pulse blade is ready for the final blow with either a charged attack or a combo attack, and its reach works quite well for catching people trying to run away.
It's a quite versatile build to play for both PvE and PvP, although it might take some time to learn how to properly assault a target while reloading weapons between attacks.
Being an hybrid between light and mid-weight mechs, it's not meant for tanking damage but rather to overwhelm the enemy with different attacks in order to destroy the target as fast as possible, following the traditional "glass-cannon" setup.
Gear setup and other details at the end of the video.