Here's what you do,
1. make sure your IP is whitelisted/allowed access to remote mysql, in CPANEL which gives you access to your database for DayZ - the section to do this is called "Remote MySQL" and is listed in the Database section of CPANEL
2. download essential files including db_spawn_vehicles.pl to your "Documents" on your local machine/PC you can find it here: cant post the helpful link but simply google github ayan4m1 DayZ archive master.zip
3. 1st make sure you have Perl installed, ie: Strawberry Perl, then within the master.zip you will see setup_perl.bat, run this.
4. after running the .bat, you need to copy and paste db_spawn_vehicles to your Documents folder.
5. open Perl Command Line, and type(the X's are placeholders for information ie: IP and db names you'll have to get from your host): perl db_spawn_vehicles.pl --host XX.XXX.XXX.XX --user XXXX_XXXX --name XXXX_XXXX --pass XXXX
and press enter...
if done correctly and all is well the script should run, and a small dialog within perl will show if it's spawned vehicles ect.
This is all based on erratic and uninformative responses collected into some real and actual instructions, it sure would help if people that were "all knowing" would share the information, instead of being ignorant #$%@ing elitist @#$%heads, helping people learn is a good thing, it makes us all smarter and is an overall positive course of action.