Some of you may of run into this issue or not but even if you didn't keep reading to help others that run into this issue.

while writing my own binds to bind mouse3 to nades and while in a vehicle use mouse3 as change vehicle camera, i wrote them correct but would not work.

i used: bind "mouse3" "_VehicleCamera" "" "Vehicle" // and
bind "mouse3" "_weapon3" "" "default"

but to no avail they wouldn't work!!! i sent a friend the file and he ran it guess what? it worked fine on his pc. i still have no idea why my game wouldn't allow it BUT i did find the fix for it.

the issue was with the context "Vehicle" . so what i did was to change the context on the vehicles themselves. it started like this

seta g_bind_context_anansi "vehicle" ( there are more of these )
seta g_bind_context_badger "vehicle"

and i changed the context [ "Vehicle" ] at the end to something different. this is what i did.

seta g_bind_context_anansi "ve" ( there are more of these )
seta g_bind_context_badger "ve"

so i wrote my binds to reflect this/

bind "mouse3" "_vehicleCamera" "" "ve"
bind "mouse3" "_weapon3" "" "default"

this worked for my issues i bet there are more out there that have this same issue. if you need more info on scripting and bind just search et-qw forums.