Alright, before we get anywhere, what good does a passive self destruct ability do on a capital ship? It will blow up as soon as its built, so I fail to see what you could possibly be trying to use it for.

What about setting it to where, once the hp drops to a certain % like .05% to activate the ability. This would probably work as an active ability setting, it would probably do better as an active ability aswell, I mean, I wanna make SURE they're around you within the radius and seriously, kamakazi caps, that'd just be fun and create a whole new slew of game-play tactics.But I'd make the ability only avalable around lvl 8 or so, unless you underpower it a bit compared to the Argonev's

I like to see if your losing, all ships start ramming 

*The Captain has the ship abandoned, the fleet is in shambles  and in retreat, the vasari are surrounding our flag ship, all the while the captain grins as he hits the shiny red button* such a lovely scene =D

The lady with the green hair has a point there, with that you could probably go as far as to place it on all ships, hell everything explodes in space, you could vary the area and damage of the blasts depending on the size or type of the ship. maybe even on modules around planets like defensive platforms or research facilities(they gotta be playin with something explosive in there ya just know it) but yeah big shiny button still gets my vote. besides, what's more fun when gettin rid of a cap ship that's no longer useful, scrapping it for materials you probably have an abundance of, or havin it visit ol' bob vasari's fleet with a hand shake and a hand grenade =D not to mention a damn fine way to end a diplomatic peace treaty =D what excitement is there in clicking a go to war button, when the "decimate unsuspecting main fleet" button is so much more helpful?

I know you're a guy and I know who xero is too, watched Code Gleass, loved the ending actually, as terribly sad as it was.

(incidentally the creepy lookin grin in my avi is a girl too lol,) anyway,maybe even making the research for the starbase's big red button have a followup research after it for all size ships, like"Reactor Instability Protocol" or something to at least make it so they can't go suicidal cap ship on everyone early game, though that would be kinda funny. and could you imagine the Vicious comps with this!!!!!!! it would be much more than a fight of numbers then!! I'd definitely make it a Tier 8 research lol especially if you were to place it on all ships or modules(at least the larger ones)

As mentioned before you have to change the OnDelay to OnOwnerDeath and you will also have to move the lastresort sound from the ability to the buff instead.

About the crash, have you updated the entity.manifest? Also the levelSourceType should be changed to "FixedLevel0", the aiUse... set to "invalid" and the isAuto... to FALSE.

For the future problems you can try and use the dev.exe to debug your mod, it is found in the install folder of the game.

I say ya make it big and flashy and something spreading out like a wave to the edge of the effective area, y aknow, flashy and pretty =3