This line:
[4830.6,9760.73,0.01],_missname] ExecVM DZMSAddMajMarker;
Change it to this (Added the extra bracket at the begining):
[[4830.6,9760.73,0.01],_missname] ExecVM DZMSAddMajMarker;
Change this:
[4830.6,9760.73112,0.01],5,1,"DZMSUnitsMajor"] call DZMSAISpawn;
sleep 5;
[4830.6,9760.73113,0.01],5,1,"DZMSUnitsMajor"] call DZMSAISpawn;
To this:
[[4830.6,9760.73112,0.01],5,1,"DZMSUnitsMajor"] call DZMSAISpawn;
sleep 5;
[[4830.6,9760.73113,0.01],5,1,"DZMSUnitsMajor"] call DZMSAISpawn;
You also have to change this line:
[_coords,"DZMSUnitsMajor"] call DZMSWaitMissionComp;
To this:
[[4830.6,9760.73,0.01],"DZMSUnitsMajor"] call DZMSWaitMissionComp;
You need to have the coordinates inside the [].