Hey! There ;D
These may be the commands you are looking for?
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group reveal unit
Operand types:
group: Object or Group
unit: Object
Type of returned value:
None
Description:
Reveal unit to group, do not care if it can know about it or not.
Example:
soldierOne reveal soldierTwo
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or
unit knowsAbout target
Operand types:
unit: Object or Group
target: Object
Type of returned value:
Number
Description:
Check if (and how much) knows unit about target. If unit is vehicle, vehicle commander is considered.
Example:
soldierOne knowsAbout jeepOne
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These commands taked from the offical coomand ref manual!
Hope this helps!!