HaloMods "Classic" Read-only Archive

Here is my script:
global boolean is_server false)

(script startup load_settings
(if (!= (unit_get_health (unit warthog)) -1)
(begin
(set is_server true)
(object_create_anew c_gun_turret1)
(object_create_anew gausshog1)
)
)
)

It used to work,but now it doesnt. When I try to compile the map this is what it says:
this left parenthesis is unmatched.: (begin

You have 10 closing brackets and 9 open ones.

If you are talking about the first line,It actually does have a bracket infront of it.