Improvements still need to be made to the "find and kill the Leper in 30 seconds" challenge.
One time he spawned outside of the map boundary, didn't even bother coming onto the map, I shot him and he simply ran so far away outside of the map that it wasn't possible for me to shoot him.
Another time he ran behind the electric fence near the second barrier hive and went behind the buildings there making it not possible to get him.
Other times we were unable find him.
How to fix:
1. Spawn him closer to the players.
2. Change his logic so he doesn't run off the map to places we can't attack him.
Also please remove the 50% and 75% accuracy challenge from the final hive on Point of Contact.
An improvement of the challenges still needs to be done.
The first challenge in Point of Contact (don't take damage one) is also one to think about because towards the end of the drill there is often a "rush" of aliens which attack once which ends up in someone being hit. This challenge is even more difficult if everyone is running the do less damage relic as they might not be able to finish their target off in one clip therefore causing a reload in turn causing a failed challenge.
Perhaps reduce the "rush" on the first hive if we get that challenge.
The melee only one at the beginning makes much more sense.