Tyrant is a kind of human-like zomie from the zombie game Resident Evil series. It is being well-known of its height and power. There is no offical record of how tall and how much it weights, but in general it should be two to three times bigger than a ordinary man.
From this moive in 2012 (Resident Evil: Damnation) you might have an idea.
First met in the basement:
On the street, at the first few second, when it is just next to a military truck.
Aslightly longer version (til it's death by a bomb from the sky), this clip give you an idea how tall it should be (same as the tank truck's height)