Kamikaze Headcrab

Overview
Kamikaze Headcrabs are uncommon, dangerous variants of the original Fast Headcrab. They appear identical to Fast Headcrabs, but upon spotting an enemy, they will give off a Poison Zombie-like yell, and they will abruptly glow a bright white. Afterwards, after either the crab touches it's target or waits for approximately 8-10 seconds, they will violently explode, dealing heavy damage to anyone too close.

Kamikaze Headcrabs move twice as fast as default Fast Headcrabs, and as a result, catching them before they explode may not be easy.

Should a Kamikaze be killed before it can explode, it will merely burst harmlessly.

Tactics
-Use fast firing weapons against them. Kamikazes are very quick, and slow firing weapons are going to be quite ineffective on them as a result.

-Kamikazes have very little health. Fast firing, weaker weapons such as the MP7 are generally the best options.

-Keep them at a distance. If a Kamikaze's timer goes off, you really don't want to be in the way.

-Always keep an eye on them. Their fast speed can cause you to lose track of them rather easily if you fail to notice their glow.

-Watch Fast Headcrabs carefully. If one of them suddenly glows white and a Poison Zombie can be heard, immediately take down the one that glows.