Soldiers in Combat Gear — Gray, Dramatic, Digital Art, Gun

1224 × 720

Soldier in Armor — Black, Dramatic, Digital Art, Scar

1600 × 1200

Futuristic hangar with military personnel

2560 × 1600

Giant Robot in Hangar — Blue, Dramatic, Night

1366 × 768

Green Military Aircraft — Dramatic, Digital Art

1200 × 682

Soldier in Powered Armor — Gray, Dramatic, Digital Art, Gun, Ammo Belt

1920 × 1080

Half-Life 2 vehicle concept art

1280 × 1024

Sci-fi Industrial Facility — Gray

1920 × 1200

sci-fi character in armor

1920 × 1080

Ruined Industrial Complex — Brown

1600 × 998

Futuristic Industrial Facility — Gray, Dramatic

1288 × 975

Man in Armor — Black, Serious

1920 × 1080