ICMP type three is a packet 192.168.0.198(your PC) gave out because the port 77.250.62.160 was trying to use was had no traffic header attached. So you need to figure out what port that IP is trying to talk on (probably else where on the logs) and forward it to direct it by traffic type.
Basically, I need more info on your actual problem, that log doesn't give enough. Furry is right, a Game rule is needed, the question is for what? Maybe this will help: http://www.wireless.att.com/media/en_US/swf/3Gmicrocell/ATT3GMicroCell-Troubleshooting.pdf
DHCP is on
Port Blocking is either turned off or allowing ports 4500 and 500
MAC address filtering is either turned off or allowing MAC address of the 3G MicroCell
IPSec Pass-through is enabled
MTU size is set to 1492[\b]
Block Fragmented Packets is disabled
Highlighted the ones not on by default.