So this means Engi is a time traveler?

What sentries

Sentry guns like the ones Engineer can build in tf2
Or really any video game

They do?

Nope, sentries don’t exist
Since when it was being tested, the sentry shot an animal just because it moved
:
So it would probably shoot anything that moves

This exists

Yes, but it’s an anti-air so it doesn’t count as anti-personnel sentry

It’s still a sentry

Really?
Interesting

yes they do

There are indeed, but not that much
And mostly used on really important places

i mean theyre insanely expensive and pretty much only the government has them, but theres a lot of em

meanwhile every guarded military base in almost every country:

Wrong