More stills for SyAAF units of different types could be taken while in action.
Let's start with the L-39's which conduct air raids over Aleppo and recently over Raqqa (providing that some units are based in Kshesh airbase which is very close to Raqqa).
Above a unit carries serial 2112 spotted somewhere over Aleppo province.
This could be the last photo for this L-39 with serial 2119 downed on 19 November 2012 near Ain Jara town in Aleppo province (Source: CNN).
A still I extracted from an HD video shows an L-39 with serial 2125 spotted over Raqqa.
MiG-21 spotted over Jarjanaz town - Idleb province, on 1 September 2012.
Su-22M-3 releasing FAB-500.
Another stills for Su-22M-3 extracted from an HD video spotted while bombing Ma'arret Annu'man town on 10 October 2012.
Another still for the same Su-22 carrying two FAB-500's fitted to the pylons of the wing roots, the two bombs on the belly pylons look like cluster ones.
Clear still for a Su-24MK loaded with eight free-falling bombs maneuvering over Jabal Azzawiyah in Idleb province before it released its hell, dated 21 November 2012.