Online FPS games notorious for rampant cheating include Call of Duty (especially Warzone and Modern Warfare series), Apex Legends, Counter-Strike 2 (CS2)/CS:GO, PUBG, and Team Fortress 2 (TF2).
1. Call of Duty (Warzone, MW3, Black Ops 6): Tops lists for cheaters with aimbots, wallhacks, Cronus/Zen scripts, and DDoSing; Activision banned over 228,000 in six months and 136,000+ in early 2025 via Ricochet, but blatant cheats persist in SND/Cyber and ranked.
2. Apex Legends: Often labeled "the worst" for wallhacks/aimbots in ranked (diamond+ lobbies), with pros like Rogue hit by hacks/DDoS/account compromises; high ban rates but cheaters flood high MMR.
3. Counter-Strike 2/CS:GO: "Cheating pandemic" since F2P, VACnet ranked worst anti-cheat in 2024/2025 research (below Valorant, R6, etc.); high ranks/Premier/Faceit infested, with VAC Live catching some but free cheats thrive.
4. PUBG: Battlegrounds: Infamous for Chinese cheaters on NA/EU (no region lock), one-shots/DMA hacks rampant in 2025; Krafton banned 80k+ for hardware cheats but Steam reviews Mixed due to persistence.
5. Team Fortress 2: Official servers bot- and aimbot-overrun (90% in some lobbies); Valve's neglect forces community servers, with issues persisting into 2025.
Others like Tarkov (raids ruined), R6 Siege (rising in ranked) face issues too. F2P/PC access, weak anti-cheats (VAC/Ricochet/BattlEye), and cheat markets fuel it; many switch to consoles/single-player.