I find it funny that one of the hints is 'Timmy is the smallest sheep' Oh and by the way Shirley is Timmy's mother, trust me its in the cartoon, if you don't believe me watch it on youtube.
In domination there should be an area near the flags that enemies can't spawn in, I think it is kind of unfair when an enemy spawns literally touching my teams flag.
Jumping inside the shop hatch can be useful, and I think it is cool to jump out of the hatch into the middle of a zombie horde and kill them with a shotgun.
I have just realized that if you have already bought a weapon and there is a buy a new weapon goal, you can buy the weapon and then restart the level and you have your money back.
I shot two enemies in one, one of them died straight away , the other flew off the planet, round the universe , then it slammed into me and exploded, then i flew round the universe and landed safely on a planet, lol.