Crackdown Wiki

Available with the "Getting' Busy" DLC pack or by playing with someone who has it, the EX1 "Proximity Charge" is placed in the grenade spot. When thrown, a half-sphere of red light/lasers appears that, when entered by either the player(s) or an enemy, causes the charge to detonate with a variable force depends on the thrower's explosives skill. Due to the fact that the player and their partner (if any) can set it off, it's advised to be careful when using this in close quarters and to warn your partner if you're going to use them.

In Crackdown 2 it returns renamed Proximity Mine with a few updates.

List of Weapons in Crackdown
Agency Weapons Colby "Master" · Colby EAR50 · Colby "Limpet Charge" · MSK Lobber · HRX "Harpoon" · MZ360 "Mini-Gun" · EX1 "Proximity Charge" · VS1 "Cloaking Device"
Gang Weapons Kokov "Diktat" · Smithers "Punisher" · Dempsey SO-6 "Stub" · Dempsey 190 "Equalizer" · Harman MP-50 · Ingalls X80 SMG · Ingalls MG-60 · Harlington HMG-90 · Bastion S600 "Long Eye" · Bastion SX900 "Longshot" · Watson HE79 "Grenadier" · Watson HE99 "Hothead" · Watson HE99-X "Firefly" · Grenade · Shrapnel Grenade · Cluster Grenade