This story is a sequel to Entrenchment

An Age of Iron story.

At last, Ferrous Dominus is (mostly) secure.
Centaur III has been (largely) pacified.
The enemies of Chaos and Equestria have finally been crushed (probably).

But victory is merely a prelude to the next war. The Imperium of Man and the pitiful, far-flung holdings of the alien await the Iron Warriors and their new allies, ripe for conquest and plunder. With a new home world and a new ally under their thumb, the 38th Company at last turns its attention on a galaxy ablaze with constant war, seeking new victims to fill the bellies of their ships. The gentle but resourceful equines of Equestria travel with them, taking to the field not out of malice or avarice but gratitude in at last fulfilling their grave debt to the Legion.

But in the depths of the void, far beyond the fleet, beyond the veil of the Materium itself, Chaos is not idle. Plots advance, blood spills, and ancient evils seethe.

The light will be extinguished.

(Dark humor warning; grimdark themes)
(Cover art, and pretty much the rest of the art too, by EZTP)

A close encounter with a category three Kaiju leaves Midsummer Night, a Mark-II Jaeger, in the inky depths of an unknown ocean. With no communications or navigation available, the pilots, Shane and Michael O'Connell, are well and truly out of their element.

Good thing they accidentally brought something with them to liven up the party,

Pacific Rim crossover

Art by: Zeiram0034.
Edited by: Pixel brony.

Now with a Tvtropes page!

This story is a sequel to Iron Hearts: Book 5 - Suffer Not the Alien to Live

Personnel log C-921825

Designation... Gear Works
Detachment... 38th Company, Dark Mechanicus sub-division
Rank... [ERROR]
Tacticae Specialization... [ERROR]
Planet Origin... Centaur III
Personnel Status... Active
Current Deployment... [LOADING]

(An Age of Iron side-story/mini-series.)
(Dark humor warning. Some grimdark themes.)
(Cover art by Underpable.)