True, 2 FAB-250s are mentioned in the Il-10's documentation as one of the variants. But I don't think they were used in the combat. Not in 1945, definitely. I have no information about the North Korean loadouts.
400 kg (probably 480 kg in one regiment) was maximum in 1945. 500 kg was considered as overload and 600 kg was possible but not recommended.
Current Il-10 loadout (weapons.properties) in BAT:
Il-10.4xRS82 4x RS-82 rockets
Il-10.4xBRS82 4x BRS-82 rockets
Il-10.4xRS132 4x RS-132 rockets
Il-10.4xM13 4x M-13 rockets
Il-10.176xAJ-2 4x AJ-2 cassette
Il-10.144xPTAB2_5 144x PTAB-2.5 bombs
Il-10.12xAO10 12x AO-10 bombs
Il-10.4xFAB50 4x FAB-50 bombs
Il-10.4xFAB50_4xRS82 4x FAB-50, 4x RS-82
Il-10.2xFAB100 2x FAB-100 bombs
Il-10.2xFAB1004BRS82 2x FAB-100, 4x BRS-82
Il-10.2xFAB1004BRS132 2x FAB-100, 4x BRS-132
Il-10.4xFAB100 4x FAB-100 bombs
Compared to the tables from the books of Oleg Rastrenin (probably, the best expert in this topic), the following loadouts are missing:
- 2xFAB250 (of 4 subtypes)
- 120xZAB 2.5 and 2.5-1
- 12xAO25 and 25-35
- 54xAO10 and AO10-6.5
- 232xAO2.5-2
- 176xAO2.5
- 60xPTAB10-2.5
It would be interesting to have ZABs which were probably more relevant in 1945 (and in Korea?) than outdated AJ-2.
Small calibre AOs for damaging stationery aircraft and trucks.