The Board remands the claims for a 100 percent rating and TDIU due to pre-decisional duty to assist errors.

The Board remands the claims for service connection, increased rating, and TDIU due to incomplete evidence.

The Board denied an earlier effective date for the grant of a 70 percent disability rating for major depressive disorder with alcohol use disorder, as the evidence did not support a finding that the Veteran's symptoms more nearly approximated the criteria for a 70 percent disability rating prior to July 29, 2024.

The Board denied service connection for major depressive disorder with alcohol use disorder, finding no evidence of a psychiatric injury or disease during service and no relationship between the current disability and any injury or disease during service.

The Board granted service connection for multiple conditions, including left knee degenerative joint disease, right knee degenerative joint disease, thoracolumbar spine degenerative joint disease and degenerative disc disease, major depressive disorder with alcohol use disorder, avascular necrosis of the left hip, and sleep apnea, all as secondary to service-connected disabilities.