ok here's an idea how about a combat in every sort of melee weapons.
like R+R+L
or R+R+L
L+R+R ......
R=right mouse click
L=left mouse click
and you can get more powerful combat by upgrading your combat skill
and there well be unique melee weapons with unique combat like an Axe or something new like chain saw bat..
even jumping can be combat like jump and then attack or crouch and sneak attack
and it can be even while using vehicles
like R+R+L
or R+R+L
L+R+R ......
R=right mouse click
L=left mouse click
and you can get more powerful combat by upgrading your combat skill
and there well be unique melee weapons with unique combat like an Axe or something new like chain saw bat..
even jumping can be combat like jump and then attack or crouch and sneak attack
and it can be even while using vehicles