iptables with TS3, is this a good configuration?

[JohnnyT]

Hello, my TS3 is experiencing some issues for some users, I'm wondering if this is a good configuration....

# Generated by iptables-save v1.4.8 on Sat Jan  8 18:42:50 2011
*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [216:14865]
:BRUTEGUARD - [0:0]
:interfaces - [0:0]
:open - [0:0]
-A INPUT -p icmp -m icmp --icmp-type 18 -j DROP 
-A INPUT -p icmp -m icmp --icmp-type 17 -j DROP 
-A INPUT -p icmp -m icmp --icmp-type 10 -j DROP 
-A INPUT -p icmp -m icmp --icmp-type 9 -j DROP 
-A INPUT -p icmp -m icmp --icmp-type 5 -j DROP 
-A INPUT -p icmp -j ACCEPT 
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT 
-A INPUT -j interfaces 
-A INPUT -j open 
-A INPUT -p tcp -j REJECT --reject-with tcp-reset 
-A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable 
-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROP 
-A INPUT -f -j DROP 
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP 
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP 
-A INPUT -i eth+ -p icmp -m icmp --icmp-type 8 -j DROP 
-A BRUTEGUARD -m recent --set --name BF --rsource 
-A BRUTEGUARD -m recent --update --seconds 600 --hitcount 20 --name BF --rsource -j LOG --log-prefix "[BRUTEFORCE ATTEMPT] " --log-level 6 
-A BRUTEGUARD -m recent --update --seconds 600 --hitcount 20 --name BF --rsource -j DROP 
-A interfaces -i lo -j ACCEPT 
-A open -p tcp -m tcp --dport 80 -j ACCEPT 
-A open -p tcp -m tcp --dport 10011 -j ACCEPT 
-A open -p tcp -m tcp --dport 30033 -j ACCEPT 
#TS3 Server Instances
-A open -p udp -m udp --dport 9987 -j ACCEPT
-A open -p udp -m udp --dport 9999 -j ACCEPT
#
-A open -p tcp -m tcp --dport 8000 -j ACCEPT 
-A open -p tcp -m tcp --dport 8001 -j ACCEPT

Would the bruteforce guard be adequate or potentially conflict with the TS3 server software?

Thanks