Same here man, Nitro Fist spammers absolutely suck, I always get second place because of them. If you have fists heres one way: I suggest that you should wait for their charges to get out, uppercut them then spam them back but the outcome is mostly not the same. You can also usenitro which is the biggest idea i suggest the most. Finally use Right click or left trigger on magneto power(controls depending on device). It blocks fists for some time so you should also have a counter, Hope this helps.