The important issue: Sound.

[Fyrn]

Pretty sure you've all had this happening: you sit in a large tank. You feel pretty safe. Suddenly, you hear a "cling" noise. It sounds like someone's knocking on the door. You look outside but there's nobody there.

Was it that neighbors cat?

No, it was the Liberator that hovered 8534km above you and kept wailing on you until you inevitably exploded.

What's up with that? Everytime it happens I think "oh, well, there's some dude who thinks he can headshot my tank." then BOOM.

There you go. I made a QQ thread.