What is wrong with this code?
<?xml version="1.0" standalone="no"?>
<unit>
<!-- *** PARAMETERS *** -->
<parameters>
<size value="1"/>
<height value="3"/>
<max-hp value="500" regeneration="0"/>
<max-ep value="0"/>
<armor value="20"/>
<armor-type value="Steel"/>
<sight value="15"/>
<time value="60"/>
<multi-selection value="true"/>
<cellmap value="false"/>
<levels>
<level name="Elite" kills="5"/>
</levels>
<fields>
<field value="land"/>
<field value="air"/>
</fields>
<properties/>
<light enabled="false"/>
<unit-requirements>
<unit name="War Factory"/>
<unit name="Advanced Weapons Lab"/>
</unit-requirements>
<upgrade-requirements/>
<resource-requirements>
<resource name="Gold" amount="100"/>
</resource-requirements>
<resources-stored/>
<image path="images/archer.bmp"/>
<image-cancel path="images/tech_cancel.bmp"/>
<meeting-point value="false"/>
<selection-sounds enabled="true">
<sound path="sounds/archer_select1.wav"/>
<sound path="sounds/archer_select2.wav"/>
<sound path="sounds/archer_select3.wav"/>
<sound path="sounds/archer_select4.wav"/>
<sound path="sounds/archer_select5.wav"/>
<sound path="sounds/archer_select6.wav"/>
<sound path="sounds/archer_select7.wav"/>
<sound path="sounds/archer_select8.wav"/>
<sound path="sounds/archer_select9.wav"/>
<sound path="sounds/archer_select10.wav"/>
<sound path="sounds/archer_select11.wav"/>
</selection-sounds>
<command-sounds enabled="true">
<sound path="sounds/archer_ack1.wav"/>
<sound path="sounds/archer_ack2.wav"/>
<sound path="sounds/archer_ack3.wav"/>
<sound path="sounds/archer_ack4.wav"/>
<sound path="sounds/archer_ack5.wav"/>
<sound path="sounds/archer_ack6.wav"/>
<sound path="sounds/archer_ack7.wav"/>
<sound path="sounds/archer_ack8.wav"/>
<sound path="sounds/archer_ack9.wav"/>
<sound path="sounds/archer_ack10.wav"/>
<sound path="sounds/archer_ack11.wav"/>
<sound path="sounds/archer_ack12.wav"/>
<sound path="sounds/archer_ack13.wav"/>
<sound path="sounds/archer_ack14.wav"/>
<sound path="sounds/archer_ack15.wav"/>
</command-sounds>
</parameters>
<!-- *** SKILLS *** -->
<skills>
<skill>
<type value="stop"/>
<name value="Stop Skill"/>
<ep-cost value="0"/>
<speed value="1000"/>
<anim-speed value="45"/>
<animation path="models/Mammoth Tank.g3d"/>
<sound enabled="false"/>
</skill>
<skill>
<type value="move"/>
<name value="Move Skill"/>
<ep-cost value="0"/>
<speed value="220"/>
<anim-speed value="150"/>
<animation path="models/Mammoth Tank.g3d"/>
<sound enabled="false"/>
</skill>
<skill>
<type value="attack"/>
<name value="Attack Skill"/>
<ep-cost value="0"/>
<speed value="50"/>
<anim-speed value="50"/>
<animation path="models/Mammoth Tank.g3d"/>
<sound enabled="true" start-time="0.5">
<sound-file path="/sounds/archer_attack1.wav"/>
<sound-file path="/sounds/archer_attack2.wav"/>
<sound-file path="/sounds/archer_attack3.wav"/>
<sound-file path="/sounds/archer_attack4.wav"/>
</sound>
<attack-strenght value="100"/>
<attack-var value="0"/>
<attack-range value="10"/>
<attack-type value="Cannon"/>
<attack-start-time value="0.5"/>
<attack-fields>
<field value="land"/>
<field value="air"/>
</attack-fields>
<projectile value="true">
<particle value="true" path="Particle_Proj.xml"/>
<sound enabled="true">
<sound-file path="/sounds/arrow_hit1.wav"/>
<sound-file path="/sounds/arrow_hit2.wav"/>
<sound-file path="/sounds/arrow_hit3.wav"/>
<sound-file path="/sounds/arrow_hit4.wav"/>
<sound-file path="/sounds/arrow_hit5.wav"/>
</sound>
</projectile>
<splash value="false"/>
</skill>
<skill>
<type value="attack"/>
<name value="Missle Skill"/>
<ep-cost value="0"/>
<speed value="25"/>
<anim-speed value="50"/>
<animation path="models/Mammoth Tank.g3d"/>
<sound enabled="true" start-time="0.5">
<sound-file path="/sounds/archer_attack1.wav"/>
<sound-file path="/sounds/archer_attack2.wav"/>
<sound-file path="/sounds/archer_attack3.wav"/>
<sound-file path="/sounds/archer_attack4.wav"/>
</sound>
<attack-strenght value="150"/>
<attack-var value="0"/>
<attack-range value="15"/>
<attack-type value="Missle"/>
<attack-start-time value="0.5"/>
<attack-fields>
<field value="land"/>
<field value="air"/>
</attack-fields>
<projectile value="true">
<particle value="true" path="Particle_Proj.xml"/>
<sound enabled="true">
<sound-file path="/sounds/arrow_hit1.wav"/>
<sound-file path="/sounds/arrow_hit2.wav"/>
<sound-file path="/sounds/arrow_hit3.wav"/>
<sound-file path="/sounds/arrow_hit4.wav"/>
<sound-file path="/sounds/arrow_hit5.wav"/>
</sound>
</projectile>
<splash value="false"/>
</skill>
<skill>
<type value="attack"/>
<name value="Mini-Turrets Skill"/>
<ep-cost value="0"/>
<speed value="100"/>
<anim-speed value="50"/>
<animation path="models/Mammoth Tank.g3d"/>
<sound enabled="true" start-time="0.5">
<sound-file path="/sounds/archer_attack1.wav"/>
<sound-file path="/sounds/archer_attack2.wav"/>
<sound-file path="/sounds/archer_attack3.wav"/>
<sound-file path="/sounds/archer_attack4.wav"/>
</sound>
<attack-strenght value="75"/>
<attack-var value="0"/>
<attack-range value="10"/>
<attack-type value="Bullets"/>
<attack-start-time value="0.5"/>
<attack-fields>
<field value="land"/>
<field value="air"/>
</attack-fields>
<projectile value="true">
<particle value="true" path="Particle_Proj.xml"/>
<sound enabled="true">
<sound-file path="/sounds/arrow_hit1.wav"/>
<sound-file path="/sounds/arrow_hit2.wav"/>
<sound-file path="/sounds/arrow_hit3.wav"/>
<sound-file path="/sounds/arrow_hit4.wav"/>
<sound-file path="/sounds/arrow_hit5.wav"/>
</sound>
</projectile>
<splash value="false"/>
</skill>
<skill>
<type value="die"/>
<name value="Die Skill"/>
<ep-cost value="0"/>
<speed value="60"/>
<anim-speed value="60"/>
<animation path="models/Mammoth Tank.g3d"/>
<sound enabled="true" start-time="0">
<sound-file path="sounds/archer_die1.wav"/>
<sound-file path="sounds/archer_die2.wav"/>
<sound-file path="sounds/archer_die3.wav"/>
<sound-file path="sounds/archer_die4.wav"/>
</sound>
</skill>
</skills>
<!-- *** COMMANDS *** -->
<commands>
<command>
<type value= "stop"/>
<name value="Stop"/>
<image path="images/tech_stop.bmp"/>
<unit-requirements/>
<upgrade-requirements/>
<stop-skill value="Stop Skill"/>
</command>
<command>
<type value= "move"/>
<name value="Move"/>
<image path="images/tech_move.bmp"/>
<unit-requirements/>
<upgrade-requirements/>
<move-skill value="Move Skill"/>
</command>
<command>
<type value= "attack"/>
<name value="Attack"/>
<image path="images/archer_attack.bmp"/>
<unit-requirements/>
<upgrade-requirements/>
<move-skill value="Move Skill"/>
<attack-skill value="Attack Skill"/>
</command>
<command>
<type value="attack_stopped"/>
<name value="Hold Position"/>
<image path="images/tech_hold.bmp"/>
<unit-requirements/>
<upgrade-requirements>
<upgrade name="Training_field"/>
</upgrade-requirements>
<stop-skill value="Stop Skill"/>
<attack-skill value="Attack Skill"/>
</command>
</commands>
</unit>
For some reason, I am only able to use the basic attack, not the others.