You unlock the Vigilant exosuit at player level 40, or you can spend your hard-earned cash by purchasing the Head Start Kit from the Xbox Store, which unlocks the Murasame, Nimbus and Vigilant suits.
Once you have them, you can favourite your chosen suit (in this case the Vigilant) so you load into a game as that suit, rather than having to change during a game.
As Vigilant, you’re a long range sniper. While your zoomed in main attack is decent, the real progress will come from using your power shot,
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Once a large group of dinosaurs gathers, use your power shot straight at them and you’ll damage a load of them. This is especially powerful in the data transport final battle, as silly number of raptors spawn at once.
Simply repeat this heavy damage over time to defeat 1,000 dinos.