detuning and bass issues
i am goign to tell you what i think is wrong with this because you allready know what all is awesome.
first off your bass is so wide and for being detuned you are draining the song of the sparkly stereo high's and mids' so there was some interference issues.
at :41 i loved that siren but it was way too short so if the sample or synth you made didnt let it sustain long enough clip a part of the siren and make it a sample that you can copy and paste continuously it might sound clipped but if you do it right you can give it a side chained effect.
this song could have used some more sub bass and a litttle less resonance heavy mid bass mix.
around 1:23 those claps and percussions could have had more presence. not a higher amplitude or volume but rather they are being eaten up.
eq and mono that bass a bit more and drop the res or lessen the detune and you should have a really KILLER song.
great work on this...i want to destroy a village after listen to this