made for for L4's Mass Effect and Starship Trooperscrossover fanfic on ff.net and alternatehistory.com, the current story arc can be viewed here:
The current story arc can be viewed here:
FF link:www.fanfiction.net/s/12368590/&
AH link:www.alternatehistory.com/forum&

Initially developed as enhanced export variant of the baseline M27 Centurion II for other Terran allies and their autonomous colonies as well as various various paramilitary organizations. The M28 Ariete (Ram) III was also adopted by the Terran Federation Armed Forces as M27 Centurion Mark X "Sakeen" (Hebrew for "knife"), although the type had been largely superseded in frontline service in the mainstay Terran Federation military by newer designs and 2nd gen Marauders, these tanks still continue to see service in other Terran colonies and a number of other factions and private military corporations.

In an attempt to extend the service life of the old Centurion II tanks by a few more decades, the new version had a redesigned welded turret with improved active protection system with a field upgrade kit with add-on ERA protective plates which was bolted around the turret with thermal coatings for countermeasures against lasers and plasma weapons. In addition, it also received an improved variant of the original MW-97B Thundershrike cannon, with higher muzzle velocity and capable of firing ATGMs. This solution was cheap and easy to implement, though its effectiveness was marginal at best. Compared to the baseline Centurion II, the armour protection was greatly improved, but still prove to be insufficient against more modern mass accelerator and plasma weapons.

https://www.deviantart.com/larrynguyen0096/art/UCF-M27-Centurion-II-Mk-X-Sakeen-M28-Ariete-III-845920489