If it helps, the height of the masked soldier entity is 73.7 world units. You can call those units whatever you like.
Here's the DBPro code I used to check:
set display mode desktop width(), desktop height(), 32
sync on : sync rate 60 : sync
autocam off
load object "Masked Soldier.X", 1
height# = object size y(1, 1)
width# = object size x(1, 1)
depth# = object size z(1, 1)
` make two small marker objects as a check
make object sphere 2, 5
position object 2, 0, height#, 0
make object sphere 3, 5
position object 3, 0, 0, 0
position camera 0, height#/2.0, -3.0*depth#
point camera 0, height#/2.0, 0.0
repeat
text 20, 20, " height = " + str$(height#, 2) + " width = " + str$(width#, 2) + " depth = " + str$(depth#, 2)
sync
until spacekey()
end