Yes the crash occurs W/O the mods, I just did the exact same test, this time with no mods, same result in my mission and in official mission(took 2x longer for crash to occur on official mission - Master Altis), Also i did it by spamming lightning as the other way requires another player.

Both were done Solo on Dedicated server, I am again assuming it is the same crash as when there is another player in the other Zeus, from my last test with some friends it happened faster when the other Zeus was occupied, compared to me doing it Solo.

Uploaded latest dump with server RPT.

I was able to re-produce the crash in MP server solo, by spamming Lightning, i will assume it is the same crash that happens when with another Human as the other Zeus.

The errors are: "Server: Object 3:36 not found (message 88)" for each unit it shows different object number & message number each time.
And for the lightning errors which happen when you use lightning they are:
No shape for ammo type LightningBolt
2014/04/07, 13:14:05 Client: Object 3:61 (type Type_87) not found.
2014/04/07, 13:14:05 Client: Object 3:61 (type Type_88) not found.
2014/04/07, 13:14:05 Warning Message: You cannot play/edit this mission; it is dependent on downloadable content that has been deleted.
a3_data_f_curator_misc
2014/04/07, 13:14:05 a3\data_f_curator\misc\lightning2.p3d: No geometry and no visual shape
2014/04/07, 13:14:05 a3\data_f_curator\misc\lightning2.p3d: No geometry and no visual shape
2014/04/07, 13:14:05 a3\data_f_curator\misc\lightning2.p3d: No geometry and no visual shape
2014/04/07, 13:14:05 a3\data_f_curator\misc\lightning2.p3d: No geometry and no visual shape

The error involving a3_data_f_curator_misc missing is BS. As every single pbo is uploaded to server.
The errors are easy to reproduce, just place unit(for the object error) and use lightning and look at the RPT file, also these were produced on Official mission, and these errors may or may not be causing a CTD issue to do with 2 Zeus's(http://feedback.arma3.com/view.php?id=18306). RPT file uploaded.