First u shoud make a back up copy of the file proto.xml,u had better know about 
the names of the warriors that r in the specified civilisation.Now edit the file 
using text editor,search 4 skirmisher(4 Spanish civilisation)...

dont count in ur population:
PopulationCount 0 

run at max speed:
MaxVelocity & 
MaxRunVelocity 999 

turn very quickly:
TurnRate 360 

makes unit invinsible:
InitialHitpoints & 
MaxHitpoints 99999 

REVEALS THE MAP WHEN INVOKED:
LOS 250

attacks enemy when seen in that range:
AutoAttackRange 40-50

create at that instant WHEN INVOKED:
TrainPoints 0

get that much of xp when created:
BuildBounty 10000

create unit 4 free:
Cost resourcetype 0

for better armour:
Ranged value 1 


4 nice range attack in defend mode
DefendRangedAttack 2000

4 nice range attack in volley mode
VolleyRangedAttack 2000

estroys the buildings @ faster 
rate
BuildingAttack 1000

increases Rate Of Fire
ROF 0


For artillary, change DamageCap, say 4000 , DamageArea to 20, MaxRange to high 
value say 280....
with this artillary alone u can win the game.....these tags r common 2 all 
warriors..u can search 4 different warriors & can change them too ....
Njoy...playing...