you can check OVH Game , its more protected from ddos attack , but they sale didicated only , but you can check omgserv.com they sale VPS Game with high DDoS Protection .
first , to protect your gameserver , you have to install ReHLDS & reauthcheck , to block all fake players . about gametracker.rs , i already installed ReHLDS , and i'm boosting from gametracker.rs many time , and when i boost my servers , +20 players join to it , so its not a fake players .
To Protect Your server , you must install ReHLDS and reauthcheck in your server . about bots or fakeplayers ... , if you are using ReHLDS & reauthcheck , they will get ban , so make sur that the players who will join to your servers , its real players .