Not really. There are many who play Halo who never play the campaign. I think they're missing out since Halo's universe and it's lore are it's biggest draw but I'm sure there is an audience out there who wouldn't mind paying a discounted price for access only to multiplayer.
The MP is very addictive. I'm not a fan of CoD, but they have truly re-defined what an online shooter should be. The amount of unlocks is crazy. So very addicted.
The only downside is that my internet has reached its limit, so I have to try and play in constant lag. Good thing it comes back tomorrow.
The only downside to the online for me is that everyone starts of with a long range weapon (BR, dmr ETC.) and it can get annoying when you turn a corner and get 5 shots into you straight away.
Loving it. Despite all the lag and BS that happens to me, I am sitting at level 24.
40°
120°
30°
50°
Ad 
30°
0°
0°
30°
20°
10°
I cant wait!! :)
The MP is a letdown so far.
The only downside is that my internet has reached its limit, so I have to try and play in constant lag. Good thing it comes back tomorrow.
The only downside to the online for me is that everyone starts of with a long range weapon (BR, dmr ETC.) and it can get annoying when you turn a corner and get 5 shots into you straight away.
Loving it. Despite all the lag and BS that happens to me, I am sitting at level 24.