Why was Harley recruited into the squad?

Question

I understand that the other characters in the squad have a relatively controllable personality or at least possess a useful ability that make them an asset worth the trouble of containing them.

• Deadshot: relatively stable and an amazing marksman

• Captain Boomerang: world-class thief and at least capable of mid-range combat

• Killer Croc: uncontrollable but is built like a tank and can breathe underwater

• Diablo: Non-violent and hosting a demi-god

• June Moone: Also contains a demi-god and is perfectly stable when she's in proper control of her powers

• Slipknot (technically): Can climb really fast and is a good extra to kill off to increase tension

The problem is that Harley seems to be outclassed and more uncontrollable than any of them. She's not superpowered, she's (in Amanda Waller's own words) more psychotic than The Joker, she doesn't have any real combat abilities, and at best she's got a decent batting arm and six bullets in a standard revolver.

Why was it so important that Harley be included in the mission?

Answer 1

The premise of "Harley quinn is not superpowered ..... she doesn't have any real combat abilities" is wrong.

Harley Quinn is made to show athleticism, combat skills, and murderous determination. She saves Rick Flag at least once, and holds her own against the minions. She becomes a bit useless against the big bad by herself, but then practically everyone is just focusing on not being hit there.

Also remember the name of the team - Suicide Squad. Just like everyone else, Harley is an expendable asset. If she happens to perish or be tasked with something that will result in her death, that's enough use out of her for Amanda Waller and Rick Flag.