**"Onslaught," Adam Wingard’s A24 military-slasher starring Adria Arjona as a trailer-park Army sniper defending her daughter from rogue super-soldiers, opens September 4, 2026.** Early critic screenings have produced a Metacritic score of 55 (mixed or average) from roughly a dozen reviews, with standout highs including IGN’s 9/10 praise for its “down-and-dirty” action and Carpenter-inspired thrills, alongside positive notes from Den of Geek (4/5) on its stylish violence and emotional stakes. Lower marks highlight narrative thinness and a scattered structure, typical of Wingard and Simon Barrett’s elevated B-movie style. These early returns, combined with A24’s genre cachet and Wingard’s post-blockbuster return to intimate, violent horror, shape trader expectations around a modest-to-solid Tomatometer. Additional reviews will likely arrive in the final days before release, while post-opening audience and verified scores could still shift the aggregate. Historical patterns for similar mid-budget action-horror titles suggest scores often stabilize quickly once wide coverage hits, making the next 72–96 hours the key window for momentum.