You see the fight a few seconds early
Battlefield 6 is a big-team shooter where the squad that knows the map wins, and nobody can watch every window, ridge and rooftop at once. A cheat gives you information first (who is where, which way they face, what vehicle they sit in) and accuracy second. Classes are back, with Assault, Engineer, Support and Recon, and every one of them plays better when you know where the next shot comes from.
Area 51 in Season 5
Season 5 starts on October 13 with Area 51 as the flagship map and a pair of desert maps next to it. Your squad takes the hovercraft across the dunes toward the hangar, and the defenders hold the high ground behind concrete. ESP shows players through walls, so you see which door is covered before the boat lands. Open desert is also where aim assistance matters, because the ranges are long and the cover is thin. Once the squad is on foot, the same ESP shows who is stacked behind the hangar doors and who is flanking along the fence, so you choose the entrance with fewer guns on it instead of the one nearest to the boat.
Naval Warfare, Cairo and REDSEC
Naval Warfare. Season 4 is still live, and a boat crew sailing in sees who is on the shore long before anyone sees the boat. Vehicle ESP marks tanks, boats and helicopters, so an engineer knows where to point the launcher. Siege of Cairo. In Conquest the fights run street by street, and a sniper in a window above the market is the usual problem. Skeleton ESP shows where he looks. REDSEC. In the 128-player battle royale the ring shrinks, and the radar tells you which direction the next squad comes from.
The part you should know before buying
Battlefield 6 uses EA JAVELIN, an anticheat that runs at kernel level, ring-0. It is aggressive, and hardware ID bans are common, which means a new account may not get you back in. A HWID spoofer is not included in these builds and would not solve the problem anyway. The risk is high and it does not go to zero, so do not use a main account you care about, and expect to wait after big patches.
Who should pick which build
A Recon player who sits on long sightlines will want aim with smoothing and a narrow FOV. A squad leader who calls out targets gets more from ESP and the 2D radar. If you care about your account first, read the status, pick the build with the best reliability rating and start with the shortest key. Engineers who hunt vehicles get the most from vehicle ESP, and anyone who plays Rush or Breakthrough, where the attackers push through fixed chokepoints, will use the radar more than the aimbot. Run the build on a second account first, play a couple of matches in a quiet mode, and only then decide whether a longer key is worth it.