take this EDU as an example


type Chaos Troll
dictionary Chaos_Troll
category infantry
class heavy
voice_type General
accent Troll
banner faction main_infantry
banner holy crusade
soldier Chaos_Troll, 4, 0, 60, 0.8, 1.7
attributes sea_faring, very_hardy, frighten_foot, mercenary_unit
move_speed_mod 0.9
formation 4, 4, 4, 4, 1, square
stat_health 10, 0
stat_pri 20, 15, no, 0, 0, melee, melee_simple, blunt, axe, 5, 1
stat_pri_attr launching, area
stat_sec 0, 0, no, 0, 0, no, melee_simple, blunt, none, 25, 1
stat_sec_attr no
stat_pri_armour 25, 15, 0, flesh
stat_sec_armour 0, 0, flesh
stat_heat 1
stat_ground 0, 0, 1, 0
stat_mental 14, impetuous, untrained
stat_charge_dist 30
stat_fire_delay 0
stat_food 60, 300
stat_cost 5, 3000, 800, 100, 100, 3000, 2, 500
stat_stl 1
armour_ug_levels 4
armour_ug_models Chaos_Troll
ownership aztecs, denmark, teutonic_order, lithuania, novgorod, norway, slave
era 0 aztecs, denmark, teutonic_order, lithuania, novgorod, norway, slave
info_pic_dir merc
recruit_priority_offset 20

notice the highlighted areas

those last two entries are not normally seen in EDU entries but they can be added. the first is the radius of soldier/monster. the default radius is 0.4 for a man which means his diameter is 0.8.

so you increase the radius to 0.8 and the diameter is now 1.6 meters. the unit has actual area or volume on the battlefield that looks more realistic.

the downside is that you make the model a bigger target for missile weapons so you may have adjust your hit points and protection accordingly.

once this is done you could consider the second highlighted change to the weapons primary weapon line. i change the default of 25 (0 is not recognized so it defaults back to 25) to 5 which is recognized. this will increase your attack speed so you wont be cosntantly knocked off balance with extra attacks cause you are a bigger target.

You could lower the height value which is the second value after the radius to decrease your target size but than you might experience long drawn out fights in which both your unit and another unit have trouble connecting blows. especially cavalry which have a high height node if you go lower than 1.4 height the horses cant attack you.

after all you can tweak your attack and defense values to get the desired effect that you feel a monster should be able to do.