Overwatch/Guard Mode?

[cosgrove1982]

Hi there. I've only just started playing 7.62 (with unofficial patch) but hoping to move onto blue sun once i've finished . Is there a guard/overwatch mode where if the mercs are put into this mode they will automatically start to fire on any enemys within their arc of fire? Something similar to JA:BIA "guard" button for example. The manual mentioned something about "Aim point", on pg20, doing this but I can't seem to get it to work. Is there a special way to activate it etc? Any advice would be greatly appreciated.

thanks