"I built literally everything on this battlefield, yeah even the things that might kill us, what you want me to say sorry?"

"Imagine if I died right now, soo funny." When she's defusing the spike, she thinks it's funny dying from her own inventions

"Oh no no, you don't deserve my inventions." After she defuses the spike

"Everyone makes fun of German efficiency haha, just keep laughing as you use all my gear". Maybe all the guns and some agents abilities

Also i wanna mention that some agents know they're in an endless loop:

Phoenix "This is crazy it feels like we've been doing this forever. Anyone else feel like that? Just me? Okay."

Cypher "One of my cameras is broken! Oh wait… okay, it’s fine." Camera broken from last round and now it's back out of nowhere

Killjoy "They look like us, but they're not us. I have so many questions."