Playbooks
Breakdown
Mlb Cross Fire 3 is a Cover 3 zone blitz out of the 3-4 Under 4t set that sends the Mike linebacker on a cross fire stunt through the interior gap while the defensive line runs a crossing stunt underneath, with both defensive ends looping wide to contain edge rushes. Behind the pressure, the defense drops into a three deep, four under zone shell: three deep thirds covered by the outside cornerbacks and free safety, with the strong safety and remaining linebackers filling underneath zones. This is a zone blitz designed to disguise pressure while still holding deep thirds, so the primary read for the defense is getting the Mike through his gap untouched to collapse the pocket before the quarterback can find the zone windows underneath.
Defensive Reads
Watch the running back or slot receiver on drag and cross routes, since the underneath zone defenders left by the blitzing Mike must sink and wall off these throwing lanes immediately after the snap. Key the offensive line protection slide presnap, if the center or guard is sliding toward the Mike's gap the stunt is likely picked up and this call becomes a coverage rep only. This beats man beater concepts that rely on natural picks or rubs since the zone shell behind the blitz still has three deep defenders to bracket vertical routes. Shotgun spread and quick game rhythm passing attacks can beat this if the quarterback gets the ball out before the interior pressure closes, so user control an underneath defender to jump the first available crossing route. Look for the offense to attack the vacated Mike zone with a delayed check down or screen, since that void is the primary weakness of this line stunt and blitz combo.
Usage Tips
Call this out of Under 4t on early downs or third and medium when you expect a quick game or shotgun spread look, since the interior pressure disrupts rhythm throws before the receiver can climb into the void behind the crossing linebackers.
Disguise the blitz by aligning the Mike in a standard depth pre snap and only showing the walk up right before the snap, this keeps quarterbacks from diagnosing the stunt and getting the ball out on time.
If the offense shows a stack or bunch look to the strong side, consider hot routing the strong safety down into a shorter zone to help against quick out or slant concepts that attack the vacated area from the LB blitz.
Pair this with Cover 3 Sky or Cover 3 Hard Flat in your play calling sequence so quarterbacks see the same deep third shell presnap and cannot key blitz versus coverage based on safety depth alone.
Avoid calling this against empty formations or heavy shotgun spread with quick game concepts, since the interior stunt takes an extra beat to develop and can be picked apart by hot reads before the Mike arrives.
