Looking through the vehicles data in BCG Vol 1 I found that in the British Rifle Section the last three L85A2 entries have 0 ammo and 300 on the IR capability.
Also, in the weapons data, the L86A2 has a range of 500 (which would equate to 5000 metres, a bit far for 5.56mm!).
No Problem. I think two of the Apache elements in the 2nd scenario are also misnamed - they are still using the US designations 1/1/B/2-8 CAV and 2/1/B/2-8 CAV (unless of course the British are getting a little help from the 2-8 CAV!)