-Ambush

Ambush is the basic of the basic, you use 1 or 2 person as bait, lure them into your kill zone, set it a L shape kill zone like this

X

X

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Then your enemy chase your bait, let the bait run into your kill zone, and afterward, you just need to eliminate it from your position.

-Frontal Attack

The military tactic of frontal assault is a direct, hostile movement of forces towards enemy forces in a large number, in an attempt to overwhelm the enemy. This is often referred to as a suicide strike  because it is often last resort when your team has run out of strategies.