Rusted Nail - and I can imagine that the same goes for Siren charms as a whole - will be for the first time will be a hardship for me.
Start doing it very atmospheric and in-Flames-typical. Sounds Although somehow like been there, but has what.
Also the chorus is quite successful and reminds me of A Sense of Purpose. Lyrically not outstanding, but certainly live a Mitgröhlkandidat.
But I really have a problem with what have, is the vocals of Anders in the verses. This takes the song just its dynamics, I think. The pre-chorus then after that does not fit somehow, neither for nor verse to the chorus and acts like a foreign body. Only when the guitar run then heralds the chorus, it is as a listener again fully there.
Overall, you just get the feeling that the song of several different ideas and thought processes has arisen which would have been probably better split on different tracks.
It remains to be seen how the rest of Siren Charms sounds. I still have hope because the Single Deliver Us my opinion, even with Sounds of a Playground Fading was more a matter of looser songs on the album, which has me then, unlike many other fans yet been pretty good.