Wallerz, well, pending on how the hacker wants to go about. Some wallerz toggle it to deliver intel, some wallerz leave it on. The thing about wallerz, you have blatant hackers which doesn’t care whether they are caught or not, others try to hide it. It gets obvious when they start to clear a site, the moment they turn into homing pigeons. Unshrouding the radar is also a wall hack in this sense.
Speed hackers, it is not as bad as they are in BF, H1Z1 and PUBG, but they cheat on reload times and add little bit to their movement speed. It is a rarity, it was a while ago that I spotted one. You only really know them when you know your timings or when they play on your side. The continues bunny hop is also a speed hack, the quick one.
There are more, like money hacks, weapon swop hacks, etc.
In conclusion, I don't care as long as they don't hack to Global. The other day I checked hackers banned by Valve, Eagles, Supremes...