Well according to Scribe Jamerson the Brotherhood of Steel used to have patrols and guards in Settlements all over the wasteland but because of the growing super mutant threat they had to fall back and focus their forces in the DC ruins however as you well know after Broken Steel is complete the Super Mutants became not rare but damn near rare and the Brotherhood gain a lot of popularity from outsiders (due to the free clean water and the fact they wiped out the enclave) so I thought “Well if the Super Mutants are not such a big deal anymore and they are getting a lot of recruits and tech why won’t they guard and patrol the Settlements again?” This really bugged me so I decided to make this mod and as I’m sure you guess what it does is adds Brotherhood of Steel Knights/Paladins/Initiates patrolling and defending settlements in the Capital Wasteland also I thought about it and with all the power the Brotherhood would have after Broken steel (All enclave tech vertibirds e.c) they would have no problem taking over protection for the Caravans as well so this mod also replaces the Caravan Guards with BOS Guards. The BOS will now been seen patrolling and guarding in the Following Towns

1.Megaton (Five BOS soldiers inside Four BOS Soldiers Outside)

2.Rivet City (Two Brotherhood Soldiers Outside by the Bridge)

3.Big Town (Two Brotherhood Soldiers and Dusty is also now a Brotherhood initiate)

4.Canterbury Commons (Dominic and Machete become BOS Soldiers and two more BOS soldiers are in Canterbury Commons)

5.Arefu (Adds two Brotherhood Soldiers guarding Arefu)6.The Republic of Dave (Two Brotherhood Soldiers and makes Bob a Brotherhood Initiate and makes Shawna a Brotherhood Scribe who teaches the Children)

Requirements:
All you need for this mod is of course Fallout 3 and the Broken Steel DLC

Note:In this version they do not only pop up after Broken Steel is complte (see comments to find out why) but if anyone wants a version that does this please just ask and I will make that version ASAP