CMDO 6 is a British Infantry unit.
Commando 6 is a British Commando Unit based upon the 1st Special Service Brigade's No.6 Commando Battalion. During their time in Algeria, the men of No.6 Commando had been given M1 Garand rifles by American Forces, and had decided not to give them back as expected of them. A six-man squad consisting of five Riflemen with M1 Garands and a Scoped Lee-Enfield No.4, Commando 6 are the snipers of the 1st Special Service Brigade.
See SAS Sniper. Without the very high optics of the recon unit but much sturdier. Less concealment bonus. Use them to assist own infantry in attacking opposing infantry.