I play Zombie Slayer and the same faction killed mine over 60 times. The last half day we wild only be lice for 15 or 20 minutes before they start again. There should be limit on number of kills per faction per war or an elimination of kill reward if they have already killed same faction more than 12 times in 24 hours. Or a block or 0 attack points or something
If you kill the same faction over and over in Faction Wars, you will get less and less points on each kill so there is already a disincentive to repeatedly killing the same team.
You can kill a Faction first time at full Wp rewards, 2nd 200 less and 200 less each time after until the 5th time, after that It remains the same.
There are some that see certain Factions as easy kills and just wait to kill them, C's are favorites by all, weak A's and B's are next.
