i have an enemy as a capsule ... when it follows the player it just falls over . I have a rigidbody and a box collider applied to it and tried messing with the mass...any suggestions?
I also tried applying a character control to it but then the enemy walks through the walls...
If i don't put a rigidbody and dont attack the script, im not able to walk through the enemy (a good thing)...but once i add the script, seems like the colliders just disappear...
you need to move it in the x-axis instead of y-axis. If you put a character controller, you need to remove the capsule collider or weird things will happen. Adding forces to make a character move isnt appropriate, force is better for vehicles and external forces, use transform.translate for human movement.
I had the same problems when setting my enemies for the first time, my capsule would roll, fly and do all sort of things. But good reference for this is the locomotion system.
http://unity3d.com/support/resources/unity-extensions/