The radioactive dust was of little to no concern. In space, there were naturally pockets of radiation so ships had long since been shielded against it, whereas the dust would be burnt up and the radiation be circumvented by the atmosphere should it enter. When the Arcs hit, the fireballs consumed the ships they hit... only to die down to reveal that most were unscathed as their shields shimmered around them, save for several Evocatus ships being destroyed or heavily damaged to the point of being disabled. Regardless, several Evocatus class ships were hit and destroyed. Several Hastati or Velites Class, generally Civilis Protectione rather than Equitem, fell as enemy magnetic rounds hit them, before a Carrier moved in front and allowed it's shields to take the remainder of the shells for the smaller ships. The enemy appeared to be behind militarily, but they were tenacious fighters indeed.
There was a pause as all but one of the crew of a single Hastati hastily abandoned ship and then it jumped into slipspace, before dropping out right before the single Manumar-Class ship and colliding with it, causing the explosives on the Manumar to detonate, destroying them both as the Hastati's Dark Energy core self destructed
The Supreme overlord sighed and transmitted an order to the fleet "Disable their ships and force them to retreat" he ordered, and then several sections of the Triarian fleet disappeared, though the bulk remained flying around outside, spreading out further. The ships that disappeared reappeared nano-seconds later beyond the enemy shield ships and surrounding the enemy fleet on all sides except behind to give them one area to escape. They fired their weapons, not to destroy but to disable the enemy vessels. Several of the larger ships fired energy projectors, however, at the shield ships in order to take down the enemies defence, and the carriers launched their drones, and prepared boarding parties if need be. After firing, the larger ships flew across, firing broadsides at the enemy ships as the smaller ones launched into their graceful and speedy glide, flying around the enemy ships and attempting to disable the enemy ships. They moved in seemingly erratic patterns, and yet did not collide with one another, dodging enemy fire as they went. The display of lights and plasma as the ships glided around their Sazkarjhit counter parts might have been beautiful if it wasn't a battle rather than a display.
Then there were more contacts as another fleet of Triarian vessels appeared on the corner of the system, and while the Sazkarjhit were heavily outnumbered before, they were now hopelessly outnumbered, The Supreme Commander was impressed with the Sazkarjhit tenacity and their brave, if illogical, stand however, so he sent a message to the Sazkarjhit fleet
"Your courage is noted, but you cannot hope to win this fight, Xenos. Surrender now and you will be escourted out of Collective space by a minor contingent of Civilis Protectione vessels with no further hostilities. Possible diplomatic relations may ensue at the discretion of both parties. Be warned, however, if you should leave any more unauthorized espionage ships, they will not be met with a warning shot like before but shall be prosecuted or amputated."

Updated Ship

The Old Ship issued to Spectre has been deemed outdated and no longer up to par. In it's place, the Indespectus Class Prowler has been produced. It is a unique class of ship that incorporates cloaking technology by utilizing several different means, including active camouflage that bends light around the ship in order to render it invisible to the eye and Stealth Ablative Coating which is black in color and serves to refract most basic sensors, making the ship invisible to radar and other minor sensors, similar to the way Active camouflage cloaks something from eyesight. The coating must be maintained perfectly or it will return radar signals. This necessitates constant maintenance on the entire coating, which is to be done after every mission the ship goes on. This only works on minor and some moderate level sensors, making it good mostly for avoiding the eyes of pirates or sneaking through low security sectors and past small patrols, as higher security sectors and enemy warships are likely to use more advanced sensors. It has Counter-electronic systems as well. Weaponry wise, it carries weaponry on par with a Velites class Corvette, save for a miniature version of the Energy Projector that would not be able to generate enough power to glass a planet or even destroy enemy mainline ships but is powerful enough to cut through most Corvettes and Frigates, but it's not meant to be a mainline fighting vessel. It is to be used mostly be Spectre and Ghost during their operations in order to travel unseen around space. As one can imagine, this ship is considered classified on a high level by the Collective