Armored Core: Nexus
Hidden part in Ruga Canyon: Destroy OAE Investigation Team mission
To get the CR-WR81R52 (R-arm rapid fire sniper rifle), go in the direction that the monorail is traveling. On the other side of the bridge (the one the monorail is on and the direction it is going; and it is also on the top part of the bridge), you will see the part.
