Well start with this one. The tarpaulin was pulled away, revealing a low squat tank, the sloping armor giving it a streamedlined look. This is the Crusader. Eighteen tons, with two inches of armor on the turret and the frontal plate, one inch elsewhere. Engine at the front, beside the driver-a three hundred horsepower six-cylinder in-line unit; half a Rolls-Royce Merlin actually. This leaves the rear half of the vehicle clear for the fighting compartment, in this case with a three-man turret mounting a two-pounder gun firing ammunition compatible with the Bofors 40mm AA gun
-The Foresight War pg. 30-31
18-20 ton four-man tank and the basis for a range of other armored fighting vehicles. MK I with 2 pdr gun, MK II with 6 pdr, MK III with 14 pdr. The different models also feature additional armor.
-The Foresight War pg. 301
My illustration of the British Crusader tank, from the novel The Foresight War. Completely different from the historical Crusader, this tank features sloped armor and is very easy to modify. The chassis serves as the base for a number of other British vehicles in the novel.
EDIT: Actually got some feedback from the author! Anyway he told me to move the turret farther back so here is a revised version.