martial art isnt different from medieval. and honestly- the best system would be to change animations as you level/get perks
level 1 (1 to 24 or first spear perk) spear is held and player stabs in an inefficient way
level 2 (25 to 49 or second perk) player thrusts and holds the spear efficiently .
level 3- (50-74 or third perk) player uses his spears like a hoplite and glaives/halberds like a samurai
level 4- (75-99 or fourth perk) player uses his polearms like level 3 only with a little more skill shown
level 5 (100 or perk) Hollywood kong fu movie level of awesomeness
level 1 (1 to 24 or first spear perk) spear is held and player stabs in an inefficient way
level 2 (25 to 49 or second perk) player thrusts and holds the spear efficiently .
level 3- (50-74 or third perk) player uses his spears like a hoplite and glaives/halberds like a samurai
level 4- (75-99 or fourth perk) player uses his polearms like level 3 only with a little more skill shown
level 5 (100 or perk) Hollywood kong fu movie level of awesomeness
on top of this, it would be nice if opponents started shaking whilst scared, or looked tired when injured or fatigued. but do remember that when i say "second perk" i am not sure on whether there is ranked perks, a perk tree with branches or with twigs,