Tabs in dramatic!

Hey there! I've got a problem with this song... maybe some of you is able to help me. Well it sounds just shitty^^ The chord structure is: Am | F | Dm | E . It's for an desperate bossfight against your brother in the game "Swords of Liberty". The situation is: you (the player) know that you have to kill him, theres no way out... It shoud sound sad and dramatic at the same time, the drums should create a kind of strict and military atmosphere as well... it would be nice if someone could help me^^

This is an endboss soundtrack which i made for the RPG "Swords of Liberty" im actually working with friends on, so please comment. It would be very useful. Thanks :)