Pea shooter ability idea

My idea is for an ability is a jalapeño bomb which replaces the chili bean bomb.

 When you use the ability your pea shooter will shoot out a jalapeño that explodes in 1-2 seconds when it hits land and make a straight wall of fire which will do heavy damage to zombies dumb enough to walk through it. It  will usually last for 15 seconds (if it's op reduce it to 10-5)

This is good because it could temporarily stop zombies from walking through a hallway or stopping zombies from flanking you. Although, it can be easily warped through by scientists and can be rocket jumped over by zombie foot soldiers. It cannot be jumped over by zombies (excluding super brainz  or when you're at moon base z)

Please leave your opinions I'd like to hear them.