for real battle: tell you men to hold positions,and as the enemy draws near, select attack and watch the onslaught.
for spears: get on the inside,past the spear,and beat them to death.
for single battles: charge at the enemy and at the last moment,dash to the left or right and hit the back or side,1 hit kill or very effective.
link to spear and katana: http://armorgames.com/play/3148/spear-and-katana
best of luck
