Dimensional Spear Immortal

The alien invasion and the betrayal of our own kind have put us in danger.

A new organization brought new technology, preserving our last chance.

No whispers in our ears to spur us on,

no top-of-the-line projection equipment,

no fire support from the rear,

just the long spear in our hands.

As an executor, wield humanity's weapons, mete out humanity's punishment, and purge every heretic within our borders.

(The tags are wrong. This is a soft sci-fi urban novel, but I can't change them.)