From the Document: "The Army's Optionally Manned Fighting Vehicle (OMFV) is intended to replace the Army's M-2 Bradley Infantry Fighting Vehicle (IFV)[.] 'Optionally manned' means the OMFV is to have the ability to conduct remotely controlled operations while a crew is not in the vehicle and to function autonomously with the Army's Robotic Combat Vehicle (RCV). The M-2 Bradley, which has been in service since 1981, transports infantry on the battlefield and provides fire support to dismounted troops and suppresses or destroys enemy fighting vehicles. Updated numerous times since its introduction, the M-2 Bradley is widely considered to have reached the technological limits of its capacity to accommodate new electronics, armor, and defense systems. Two past efforts to replace the M-2 Bradley--the Future Combat System (FCS) Program and the Ground Combat Vehicle (GCV) Program--were cancelled for programmatic and cost-associated reasons."
CRS In Focus, IF12094
Congressional Research Service: https://crsreports.congress.gov/