The MTA task force resisted the onslaught of sandman monoliths quite well.
The superior defense of their warships allowed them to withstand a continuous barrage of positron beams. Their shielding systems were exceptionally helpful in resisting the prodigious amount of positrons accelerating towards their hulls.
The advanced sunlight propulsion systems allowed the vessels to outmaneuver and outpace the large but sluggish sandman monoliths. Even the MTA feared what might happen if any of the sandman monoliths came close enough to engulf the ships!
As for the firepower, both the mechs and warships were capable of projecting an enormous amount of damage. If it was the old sandmen, the MTA would have already cleaned them by now!
Sadly for everyone involved, the sandmen of today were completely different from the sandmen of yesterday!