You misread.. Sentinel fire conjoined increases exponentially. Under the surface of onyx thousands of them firing in different directions destroyed the entire planet. Which in includes crust mantle core etc. which is far thicker than you 1 km Death Star armor. All covenant vessels have a primitive form of forunner energy shielding.. And primitive compared to the actual shields of the forunners they are quite strong. Standard shielding on a CCS class battle cruiser is sufficient to stop 3-4 plasma torpedoes then the nanolomite armor they use could tank two plasma torpedoes.. Ok back to the actual fight.. I'd say that 5000 sentinels conjoined would reduce the Death Star into a slag heap. Their firepower and defense skyrocket exponentially.. I'd say their combined fire would be on par with a gamma ray burst.. Death Star is dead. Accept it..

K thanx for the info on the covenant shields, will take into account. The death star's ray shielding though: Powered by a fusion reactor equal in energy output to a white dwarf star (roughly) the real question is can it get through that alone let alone 1-10km thick of super dense alloy (rocks and sand are less dense and less resistive than say a block of titanium of same size as an example) Ive got to do a SIZEABLE amount of research to run the calculations though and each number in each equation on average will consist if at least 10x place values, SO IT MAY BE A WHILE but I WILL POST IT on both this reply thread and in the MAIN TOPIC on this topic thread.

It won't be accurate.. Planet composition will not be accurate. Geophysics says that with acceptable gravity turns planets into formidable stellar bodies ( if that's the right word). Earth for example would be nigh indestructible in the physical sense. Everything on the surface would die in a catastrophe. But in real life what can you think of that would effectively destroy earth? Excluding out of system things. Supernova. Gamma ray pulses, etc. the core is a spinning magnetic crystal of molten iron. A nuclear weapon wouldn't do anything to that.. But again I'm distracted.. Sentinels are sentinels.. And this isn't really a fight of how but of how many. Sentinels are the very literal word of exponential. Every one of their strengths increase exponentially.. It would be a matter of how much your Death Star could take. And this is one thing out of the halo universe.