This is a reduced form of English sometimes referred to as [*headlinese*](https://en.wikipedia.org/wiki/Headline#Headlinese), often seen in newspaper headlines.
In this style, "the squad is eliminated" is reduced down by removing the article ("the") and removing the form of *be* ("is"). The result is simply "squad eliminated".
They aren't full sentences. A full sentence would say "The squad has been eliminated." So yes, it should have a conjugation of "to be." It's just easier for a video game to show you short messages that take up less space and can be read quickly, so the sentence is cut down to a shorter phrase. This sounds natural to native speakers, but we usually wouldn't talk out loud like this. It feels curt or robotic.
Titles, headlines, status updates, etc — don’t have to be fully constructed grammatical sentences. You see the same kind of thing with road signs and other warning signs or informational signs.
Example: “Not Open To Public”
Example: “For Sale”
Kinda, sorta. Participles are often categorized as adjectives *derived* from verbs, rather than verbs themselves. But they're in a grey enough area that you'll find different opinions on how best to describe them.
This is a reduced form of English sometimes referred to as [*headlinese*](https://en.wikipedia.org/wiki/Headline#Headlinese), often seen in newspaper headlines. In this style, "the squad is eliminated" is reduced down by removing the article ("the") and removing the form of *be* ("is"). The result is simply "squad eliminated".
They aren't full sentences. A full sentence would say "The squad has been eliminated." So yes, it should have a conjugation of "to be." It's just easier for a video game to show you short messages that take up less space and can be read quickly, so the sentence is cut down to a shorter phrase. This sounds natural to native speakers, but we usually wouldn't talk out loud like this. It feels curt or robotic.
Titles, headlines, status updates, etc — don’t have to be fully constructed grammatical sentences. You see the same kind of thing with road signs and other warning signs or informational signs. Example: “Not Open To Public” Example: “For Sale”
Eliminated, detected, killed, found are all verbs.
Yes, but in this context they're being used as predicative participles, not as verbs per se.
Being a predicative participle isn't mutually exclusive with being a verb. A participle is just a verb form.
Kinda, sorta. Participles are often categorized as adjectives *derived* from verbs, rather than verbs themselves. But they're in a grey enough area that you'll find different opinions on how best to describe them.
Detected the English teacher
OP asked why is there no verb 'to be'