Crackerjack Timing (Fallout: New Vegas)

Crackerjack Timing is a three-star (★★★) challenge added in the Fallout: New Vegas add-on Gun Runners' Arsenal.

Obtaining
To complete this challenge the player must kill Mojave Wasteland cazadores with tin grenades, long-fuse dynamite, and time bombs.

Bugs

 * It appears that young cazadores are immune to time bombs and can be immune to tin grenades. Sometimes they are completely unharmed when the adults are killed in the same proximity.
 * Adult cazadores may be immune to damage from a tin grenade.
 * In the Silver Peak Mine, sneak-killing cazadors with Long-fuse dynamite does not count towards the achievement.
 * As long as the weapon you currently have out is a tin grenade, long-fuse dynamite or a time bomb, the kill counts towards the challenge. (Example- You throw a plasma grenade into a crowd of Cazadors, and switch your current weapon to a long-fuse dynamite before the plasma grenade explodes; if the plasma grenade kills any of the Cazador's while you have a long-fuse out, it'll still count towards the challenge. Note: Young Cazadores STILL appear to be immune to damage in this instance, despite attacks coming from frag grenades, detonate plasma mines and plasma grenades that damaged nearby Cazadores)