In the battle of Cairtros IV, General Arthur Brook had no intelligence information about Special Weapons Daleks. Long range scans indicated the presence of 50 Daleks. Brook allocated a force of 300 men, thought sufficient to take care of such a small force of Daleks. On landing, the 300 men were reduced to zero in less than five minutes. The Dalek Survival Guide counted this as the third greatest victory of the Special Weapons Daleks. In the aftermath of the "spectacular" victory, the Dalek Emperor deemed that the Special Weapons Daleks had proved their worth in battle and so ordered their full-scale reproduction. (PROSE: Dalek Survival Guide)