Belgian army (OB 27)
 

Belgian mechanised units equiped with the AIFV-B (from 86 onwards) have only the variant with the 25mm KBA autocannon. It would appear however that belgian mech platoons had 2 AIFV-B-25's and 2 AIFV-B-12.7mm's (instead of 4 AIFV-B-25's). The following comes from a detailed account of NATO forces in 1989. The zipped file is attached; you'll find this bit on page 122:

"Note 1: The AIFV-B equipped battalions had the following total equipment: 21 AIFV-B w/25mm gun, 21 AIFV-B w/12.7mm HMG, 6 M113A1-B w/81mm mortar, 3 M113A1-B-CP (command posts), 3 Scimitar, 2 Scorpion, 3 Spartan w/3 Recon Teams, 18 Milan ATGM, 36 Infantry Sections w/Blindicide, 4 trucks towing 4 4.2” mortars. TO&E: BN HQ: 3 M113A1-B-CP; 3 Cos, each HQ co (1 AIFV-B-25, 1 AIFV-B-12.7, 2 M113A1-B w/81mm mortar), 3 Platoons (each, 2 AIFV-B-25, 2 AIFV-B-12.7, 4 Rifle sections, 2 Milans); 1 recce co (3 Scimitar, 2 Scorpions, 3 Spartans w/3 Recon Teams), 1 Mortar platoon (4 truck-towed 4.2” mortars). M113A1-B-equipped units were similar, but substitute M113 for AIFV."

There is some corroboration as the belgian army seems to have bought both types:
http://www.answers.com/aifv

No figures on how many for each type of AIFV-B bought though.

Re: Belgian army (OB 27)
 

On belgian recon forces;

The same source as above lists the two cavalry squadrons as having (page 121):
"2 Light Cavalry Squadrons - 1st Jaagers te Paard, and 4th Chassuers a Cheval: 24 Scimitar, 24 Scorpion, 12 Striker (w/Swingfire ATGM), 12 Spartan w/recon teams"

and
"Note: recon squadron may have been mixed Scorpion/Scimitar"

"CVR(T) Family: Belgium acquired a total of 701 CVR(T) variants, including at least 157 Scimitars, 136 Scorpions, 266 Spartans and 43 Strikers. Others received included Samsons (recovery) and Sultans (command)."

With three companies per squadron that comes down to 8 scimitar and 8 scorpion (or 16 of one type) with 4 spartans and 4 strikers (HQ vehicles were sultans). That closely matches the recce squadron in the game (formation 4) but not exactly; in the game there are 3 platoons of 4 vehicles instead of 4 x 4 and there is one scorpion attached to the HQ group. If anyone has further confirmation of the organisation of these units that would be helpful.

Also the battallion recce company is absent from the game. the company consisted of (from BN TO&E in first post):
"1 recce co (3 Scimitar, 2 Scorpions, 3 Spartans w/3 Recon Teams)".

Narwan