L3X's Reach Mark V Torso
These files are all built at the same scale, so if you would like to use the different attachments with the base model. Take whatever scale you have the base model at (ie, it downloads at a scale of 25.412026) and copy and paste it in to the scale box of the attachment, reposition the pieces and print.
Ral Partha has been kind enough to develop a way to determine the scale for each individual:
UA/Base Security (M)
ODST (M) - ALL CREDIT FOR THE ODST GOES TO HUGH HOLDER, HE WAS KIND ENOUGH TO LET ME EDIT AND USE HIS FILE, THANKS AGAIN!