The Presence of a 'Warrior Code' found in Beowulf

This 'warrior code' weaves its way throughout the Beowulf poem. The warrior 'code' itself is hard to pin down. However we often see characters behave in certain ways in regarding to war, battles, strength, and boasts and the poet gives credit to the characters who have good battle prowess.  I feel one of the clearest examples of the 'warrior code' spelled out can be found in Beowulf's speech:

It is always better

to avenge dear ones than to indulge in mourning

For every one of us, living in this world 

means waiting for our end. Let whoever can

win glory before death. When a warrior is gone,

that will be his best and only bulwark (ll. 1384-89). 

In addition, there are other places in the poem where the reader sees this 'code' not merely spoken about, but rather actually played out in the lives of the Danes. Two clear examples of this can be found in Beowulf's skirmishes with Unferth. In one of his story-tellings Beowulf expalian to Unferth that
"We'd [Beowulf and Breca] been children together and we grew up /daring each ourselves to outdo each other, (ll. 535-6)" From these short lines we find an example of a code or cultural value that states 'one man, if he wants higher status, must outdo the other man' It seems this code is so strong, it impacts and governs even the children.