Here is a list I got a long time ago for vanilla Q3 player models (mod sizes vary, in Urban Terror the model is 64 units):

PlayerHeight: 58 units (64 passage height)

PlayerWidth/Depth: 31 units (64 passage width)

DuckHeight: 41 units (48 units duck passage)

MaxJump: 62 units

MaxStair: 18 units (8 = default, but 16 is possible also)

MaxHill: 45 degrees (46 is not possible to climb)

WalkSpeed: 160 units/second

RunSpeed: 320 units/second

StrafeSpeed: 320 units/second

SwimSpeed: 170 units/second

Note that good Q3A players can by strafejumping and circlestrafejumping techniques get up to speeds nearly the double of the basic runspeed. And jump much farther than the basic jump length.

Best way to check how your map details scales versus the players is by typing in console:

cg_thirdperson 1

when using sv_pure 0 and devmap. Then cg_thirdpersonrange controls the camera distance from the player model and cg_thirdpersonangle controls the viewing angle, it defaults to straight behind.

cheers