ok is there a way to make a object_list in a script. Wee looked awhile ago but didnt come up with a answer to this.

or is there a way to to find out if a vehilce is in a trigger volume without checking for each one.

Like any vehicle? I'm not sure if this is the right way, but this is how I'm doing mine in my upcoming map.

(global object_name hogs "hog_0")
(global short hognum 0)

(script continuous increase_hogs
(set hognum (+ hognum 1))
)

(script continuous set_hogs
(if (= hognum 1) (set hogs "hog_1") )
(if (= hognum 2) (set hogs "hog_2") )
(if (= hognum 3) (set hogs "hog_3") )
(if (= hognum 4) (set hogs "hog_4") )
(if (= hognum 5) (set hogs "hog_5") )
(if (= hognum 6) (set hogs "hog_6") )
(if (= hognum 7) (set hogs "hog_7") )
(if (= hognum 8) (set hogs "hog_8") )
(if (= hognum 9) (set hogs "hog_9") )
(if (= hognum 10) (set hogs "hog_10") )
(if (= hognum 11) (set hogs "hog_11") )
(if (= hognum 12) (set hogs "hog_12") )
(if (= hognum 13) (set hogs "hog_13") )
(if (= hognum 14) (set hogs "hog_14") )
(if (= hognum 15) (set hogs "hog_15") )
(if (= hognum 16) (set hogs "hog_16") )
(if (= hognum 17) (set hogs "hog_17") )
(if (= hognum 18) (set hogs "hog_18") )
(if (= hognum 19) (set hogs "hog_19") )
(if (= hognum 20) (set hogs "hog_20") )
(if (= hognum 21) (set hogs "hog_21") )
(if (= hognum 22) (set hogs "hog_22") )
(if (= hognum 23) (set hogs "hog_23") )
(if (= hognum 24) (set hogs "hog_24") )
(if (= hognum 25) (set hognum 0) )
)

(script continuous script_name
(if (and (= is_host 1) (volume_test_object trigger_volume_name hogs ) )
	(begin
		; Stuff here
	)
)

Not quite a object_list be it is still a ver nice work around and is very close to what I am needing for a script that i am making for a upcomming map.

Thanks again and that has solved a probulm that we have worked on for over two and half years now.