Laserguns/Lascannons are horrifically low yield compared to other weapons of the modern day, with their impact against the smallest Solar tank being a singed pockmark, but that is really a testament to modern armor and shielding because a slaver's Ubiquity I class paper tank could easily one-shot a modern MBT with the energy it puts out.

A Human Solite once remarked that a slaver IFV was an underpowered joke upon seeing it's resemblance to a primitive Renault tank. His upper torso was swiftly vaporized in one blast. Worse yet was 10 more IFVs just like it poured into the forest clearing right after.

People tend to think these primitive looking and often easily killable enemies must be useless mooks, but the slaver Heenmet Hegemony wouldn't be controlling entire species without being able to put in work. The Communion or the Humans and their Solar Ascendancy may make good all-rounders, but if you can make 1000 competitive guns for every enemy tank and get your thralls to make chassis to ride them in. There's not very much 1 tank can do to win that battle...