Making challenges unique - Giving H4 variety

Not trying to go on a rant here, but I can not be the only one that thinks the challenges in Halo 4 are very repetitive and dull. In fact we have had the same monthly challenge every month. I feel like 343 could be much more creative with making challenges. This can entice people to try new things or have specific fun goals to be set on in matchmaking. Here are some random examples of more interesting challenges that I think can be added in order to give more variety to the game. These are mostly dailies but the same concept can obviously be used for weekly/monthly.

Get a two for one with any type of sniper
Get 5 flag kills in one game
Earn 10 multikills with a heavy weapon
Earn 2 hail marys in one game
Get one kill of every grenade type in one game
Earn a killtrocity or more
Hold the ball for a total of 7 minutes (weekly)
Hijack 3 vehicles in one game
Snipe an opponent out of a vehicle
Earn a triple kill or more with overshield/speed boost/damage boost
Kill 40 enemies with an incineration cannon (weekly)
Kill the same enemy 3 times in a row in one game
Earn a showstopper with a shotgun
Hijack one of every vehicle (weekly)

I think I made my point… Most of these took no less than a few seconds to come up with in my head. I do think the simple challenges should stay at times as well, but all in all this would give the game more variety. Does anyone else think 343 needs to be a bit more creative on this?