She doesn't even wait around to watch the explosion on the 2nd one.

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Here's the gfycat versions:
http://gfycat.com/InfantileScrawnyDuckling
http://gfycat.com/AlienatedPowerfulBabirusa

And The @Asheru Says..... WRong topic Callin it now

Is my topic not general enough?

God I want to get my hands on the FA.

Pretty please, BE?

I demand a Katie execution unlock that makes your character toss a grenade at the downed enemy

Stop complimenting her so freely. Otherwise, she'll get a big head and her abilities will sink. @KatieFleming never stop improving! You are the example for all of us until we come to claim our place!

it's a good tactics: avoid that someone help the downed enemy: an apothecary can't jump on a grenade.

less useful for space marine against the ranged sorcerer heal

Yep. Frag and forget.

She still has much to learn

I do this in Dirty Bomb too.