If youre stuck at level 1, or stuck at any other level in fact, that would mean youre banned, or about to get banned. How to know if you are going to get banned? You will constantly recieve a pop up screen that says you have a poor internet connection, another way to know is the inability to increase the amount of dollars after battle. If this happen, create a new account and use the mod wisely, as in dont use it online becahse people will report you, even if you are not reported, the game system can detect that you are cheating at some point, especially if you use the no reload mod, regardless if you use it online or offline, for the other two mods ie unlimited ammo, and no damage, I would highly recommend that you only use those two in offline, in an onlinr match you can use the unlimited ammo mod because it isnt as obvious as the other two, you can try using the no reload mod but only in offline, even so, you have to be very careful, use it tap-by-tap, preferably with a 1 second gap in between each tap, and dont leave you finger on the fire button or that will count as spam and will get you banned, other than that, you will not get banned, again, try to create a new account and follow my advise if you want, alternatively you can take the long way by experimenting on dummy accounts to see what method will and what method will not get you banned, goodluck.