Your greatest victory and worst defeat

[Marcello]

"The Iraqi army has had the Soviet version of MLRS since the early 80's I think. It is used with HE, Cluster munitions and Chemical weapons."

In real life the iraqis used a variety of MRLS of various origin (soviet,brazilian,italian etc.). They were however generally used with unitary warheads. Cluster munitions were practically unavailable. At most they might have had a few of them for the few Orkan MRLS they got from Yugoslavia. But we are speaking about an handful of rockets for two vehicles, if that.
Iraqi insurgents do have MRLS, but they are built around stuff like the BM-14/Type 63.
Currently government forces lack any artillery beyond mortars.