errm - lots of shots in the dark here
how about:
?soldier1 in name_of_chopper: goto "in"
or how about:
?vehicle soldier1 == name_of_chopper: goto "in"
or:
?vehicle soldier1 == name_of_chopper AND soldier1 != driver name_of_chopper AND soldier1 != gunner name_of_chopper
or:
?vehicle soldier1 != soldier1: goto "in"
:note - the last one you should use only in case if you're sure
that soldier1 is only able to board that one chopper and nothing
else.
~S~ CD