About 120mm mortar cluster munitions and intelligent ammo:
There are notes that there has been 120mm cluster munitions and armoured vehicle homing grenades, but:
"In 2010, a Ministry of Defence official stated that information on the size and composition of Finland’s stockpile of cluster munitions was confidential.[16]"
http://www.the-monitor.org/custom/in...int_theme/3457
I found a thesis from early 2000s stating that there are both cluster and homing munitions but the exact types etc. were redacted from the public version. Most probably there have been STRIX + MAT-120 rounds, possibly others.
A 2011 page in FDF site lists cluster munition round for 120mm mortar but this is after MAT-120 was decommissioned. My best assumption is that the ammunition for 120mm mortars and AMOS is exactly the same what our western neighbor (and/or Norway) is using, probably produced by Nammo, Nordic Ammunition Company.
I think I have to turn around and accept the fact that until public information is available, Finnish and Swedish mortar ammo should look the same.