Here's the tactic
Save. Run up to the enemy army in an approximately 90 degree direction if possible. If not, tighten the angle of approach. Keep your finger on the space bar. As soon as you hear the enemy taunt, hit it. With any luck, you should be able to pause the game while the enemy is a small distance away from you. Now quicksave while the game is paused. Prepare to move a small distance away in the direction the enemy can easily move (because if it hits a barrier of some sort, it will stop). Hit space and move a little while observing the enemy. If you get caught or the enemy stops, reload. If it follows, hit quickly the space again and autosave.
Rinse and repeat till the enemy clears the map site, and be aware that some enemies do not move, and some maps cannot be obtained by kiting due to tight spots for kiting.