Squad
Unit, Team
noun, suffix
The kanji and the word are exactly the same. That means they share meanings as well.
隊 is commonly used as a suffix to refer to an organized group or unit, often one that works together toward a specific goal or purpose, like a レスキュー隊 (rescue squad), 軍の部隊 (military unit), or 登山隊 (mountaineering team)!
The reading is the same as the kanji reading you learned, probably because this is stuck onto things, describing various squads.
先発隊に選ばれました。
I was chosen as a member of an advance squad.
トーフグ隊のメンバーになると、どんなことをしなくちゃいけないんですか？
What kind of things would I have to do if I became a member of the Tofugu party?
私は、小動物レスキュー隊の隊長です。
I am the captain of a small animal rescue team.
海上自衛隊音楽隊に採用された時、彼女は他の自衛隊員と同様に肉体的にも厳しいトレーニングを受けなくてはいけないことを知らなかった。
When she was hired by the Japan Maritime Self-Defense Force Band, she didn’t know that she had to physically work out as hard as them as well.