Sirens are a great touch. Composition is driving and thematically consistent.
I would like less volume on the crashes to compensate for how quiet the rest of the piece is. Kick could have a shorter tail and accentuate the piece much more.
I very much like your arrangement and the energy of this piece. It feels like a march preparing for battle.
You could use more varied crash samples as well and pan them in various spots around the piece.
outro is short and cuts off early.
Some great things going on here in terms of theme and concise ideas. There is not too much going on, in a good way, no distractions. I would like a bit more clarity and some mastering compression to bring out the energy of this piece, and potentially side chain of the kick to the bass.
Overall, nice work! Thanks for coming out to NGUAC!