The fly in the ointment of Assault on Arkham

After having watched my Assault on Arkham DVD a couple more times since buying it on Thursday there's one glaring thing about the story that bothers me. During the mission briefing Waller tells The Squad to keep the "body count to a minimum". I'm sorry but even Waller at her worst would never authorize The Squad to use lethal force to any degree on the staff of Arkham Asylum.
Would Waller kill a disobedient member of The Squad to make an example of them in order to keep the rest of them in line? . . sure. Would she send The Squad to assassinate some manner of criminal? . . .sure. All that falls in line with a "greater good" kinda rationale she often operates on. But condoning the deaths of civilians is something I think is out of character for The Wall. All those people who work at Arkham are basically federal employees working at a facility serving a branch of law enforcement.
Now keep in mind I'm not trying to be "that guy" or otherwise trying to discourage you from seeing this. That over sight aside this was still a really well produced and entertaining movie that is clearly not aimed at a pre-teen crowd thank God. And unlike in Arrow or Smallville for that matter The Suicide Squad as a team and as individual characters really get a chance to shine. Now if we can get an animated DC feature sending Task Force X after some terrorists like ISIS then I could die a happy man.