My friend 'Suckmybassriffs' tabbed this song but then had 
trouble submitting it, because it apparently would not 
show up and only the writing at the top would be displayed 
and the tab wouldn't lol So he messaged me the tab and asked 
me to sumbit it from my account to see if I'd have any luck 

All credits to him... Suckmybassriffs/Kurt

Everything below this is his tab and his words 

Band:  Trivium 
Song:  Into The Mouth Of Hell We March
Album: Shogun

Seen as how no body else has tabbed it..... This song is played 
on a 5 string bass but if you don't own a 5 string you can tune 
your bass to (B,E,A,D) seen as how you don't 
need the G string (<<