The commands in Greek

[hoplite14gr]

Paul you are commendable for your efforts. Please allow me to help.
When you give a command the idea is to put a formation in a state not just an individual. It saves time and the inventors of quick sharp sentences are possibly the Spartans. TO LAKONIZIN ESTI FILOSOFIN = Talking like Spartans (few words) is
the way of the philosopher.
Example:
You use the imperative form METAVALATE of the verb METABALO = to change.
It is correct when you address a group of individuals.
I advise to use the noun METAVOLI to set the state the officer wants the unit to be in. Even in modern armies the leader is giving most orders as a noun describing the action that he wants his men to do.
Example: PROSCHI! = Atention! EFODOS! = Charge! EMPROS! = Forward!
Most drill instructors give the one word orders by pronouncing syllables for emphasis.
Example: META-VOLI !
In English it used as two words but any war film with barking sergeant shouting attention can demonstrate this better.
Ideally commands should be one word but not all commands fall into this category.
Hope I helped.
List of commands in this link courtesy of the hoplite mores renanctor group:
http://f1.grp.yahoofs.com/v1/MATEQ4tUhA ... OPLITE.txt

http://groups.yahoo.com/group/megistias ... SHOPLITE.t \\
xt
This might answer your querry about spears.
If not tell me
Kind regards