In the early to mid sixties the Canadian Army used two ATGMs, both French, the ENTAC and the SS11B. While the training was conducted at the RCAC School, the systems were operated by the infantry initially. In about 1963 3 R22R was converted to an anti-tank battalion and B Company joined 4 CIBG in Germany. AS I recall, (I was a very junior member of the HQ 4 CIBG HO ops staff at time,) the company had three platoons of mixed ENTAC and 106s and a platoon of SS11B.
Later the 8 CH, which had been converted to a reconnaissance regiment field a troop of APC mounted SS11B.
It's been a very long time, so the above is subject to age creep, but it is fairly accurate.