Complex sentence: While the initial advances in Mirage Colloid technology were made by the Atlantic Federation, a more novel development came from another source: the Mirage Colloid virus streader, created by the defense conglomerate Actaeon Industries and utilized in their prototype NMS-X07PO Gel Finieto.
Split into simpler sentences: While the initial advances in Mirage Colloid technology were made by the Atlantic Federation, later developments came from other sources. The first was the Mirage Colloid virus streader, created by the defense conglomerate Actaeon Industries and utilized in their prototype NMS-X07PO Gel Finieto.