Sorry, didn't read the other topics.
And yes, just the trailer
Seems interesting,i can’t check it right now,let’s wait for an HR to reply.
The trailer gone probably because server's vehicle got respawned by a staff. About the shooting range bug I think it's a SAMP bug.
Issue regarding trailer respawning fixed. Admin command to respawn unoccupied vehicles will now omit mission vehicles that aren't being driven.
Issue regarding shooting range targets is a SA-MP/GTA issue and unfixable.
Thank you for your reports, however in the future please post each issue in an individual topic, as I have fixed one issue but not the other, and now cannot properly categorize this topic in fixed/unfixed.