Armed asssault worth it?

Im thiking of buying armed assault+ expansion. Because i really want a 2 player LAN game with large battlefields, i like coop and versus modes and i like games which have good amount of weapons. So do you think i should buy it?

My pc specs:

Q6600 2.4

8800GTX 764MB

2GB RAM

My laptop:

dell xps m1530

T9300 2.6ghz

3gb ram

8600gt 256+ shared mb.

I wanan play the game lan:)

arma is a great game if u like tactical and very realistic shooters, its punishing hard to at some points. U will have no problems running it, it dosent ask a lot. About LAN.....maybe 3vs3 would be a bit fun but 1vs1......it gets boring fast if u are playing it 1vs1

there is always hamachi if u want matches

not 1vs1,,,, i would like good realistic tactical team work, killing loads of soldiers, tanks and also some stealth missions if it has :P... and i never play Operation Flashpoint.milan444

sry i tottaly forgot, there is a great map editor(it comes with the game) where u can make ur co-op missions and can kill lots of soliders together