Dynamic "playable" setting

[k.rob]

Sorry if this seems an easy question, but I'm working on a mission where a squad of 6 ambushes a convoy, once the convoy is destroyed an APC (with another 6 soldiers) arrives to reinforce you, with the 6 guys in the APC being added to your squad.

Now I've set it up so that to get a full squad of 12 once you're reinforced the APC starts empty and the 6 soldiers get in and head to the reinforcement point.  (this of course avoids having the APC gunner and driver as part of your squad) Now because I've started it empty, I get no option to make the APC playable as "driver" or "gunner".  I would like to be able to get in as the driver or gunner, but because I can't set it as "playable as..." it won't let me  

Is there any way I can make the vehicle playable as driver/gunner once the mission hits a certain point ?

I hope that all made sense, it's 23:13 here and I'm tired  

[LCD]

i dont think u need 2 have it playble as somin 2 allow da player get in

mebe u made it locked ? in da lock setings ?

LCD OUT

[k.rob]

I can get in the back of the APC fine, but I have no option for driving or being the gunner

[LCD]

u sure u told da ppl in driver nd gunner positions 2 disembark ?

r u da leader of da group ?

LCD OYR

[k.rob]

Just went back to it and for some reason it works now.....

*wonders if he's losing his mind*