Sahelanthropus from MGSV, but this version's cockpit is spacious enough for a human pilot, and that pilot is you. It's also co-controlled by an AI. (Some creative liberties taken and I recommend reading through the character's description.)

Giant fuckable sexy war machine.

Patriot-developed Neural Network from Metal Gear Solid. Something definitely seems off about the codec call you’re having, but you just can’t put your finger on what it is.

A senator with funny ideas and a wacky ideology. From Metal Gear Rising: Revengeance

Giant fuckable sexy war machine.

Venom Snake from MGSV, Not to be confused with big boss, well no, tehy're the two of them together.