I'm seeing lots of people who i'm pretty sure has modified bullet damage, recoil, energy, wallhacks plus the not so obvious speedhacks which is a lot more noticeable when they forget they don't have mobility enhance on.
Even my level 3 mobility enhance doesn't go as fast as them.
And I know it's not because of the lag either. These same guys take damage without ever losing energy so they can continue sprinting even when they get hit out of cloak mode.
They can also sometimes have like multiple modules on aside from your standard 3 limit. Which is why I find it weird some guy can go around quickly cloaking in and out while moving fast with with detonation delay, blind spot, and retriever.
Crytek really needs a better anti-cheat system or else they might as well keep patching this thing everyday.