Space Wolves could be very assault-oriented or very shooty if he spams Long Fangs. If he goes shooty, he'll probably out-shoot you. Just keep that in mind.
Also, you don't have very reliable AT. You need more meltas. Your land speeders can very easily be shot down after which, you really have nothing to deal with Land Raiders if he takes them. Plasma Cannons make for great TEQ-killing but horrible AT. I suggest to equip 2 of your tact squads with missile launcher + meltagun for greater flexibility.
Note that assault marines cannot take Razorbacks. And with 5-6-man squads with no power weapons, they won't provide much support in cc. My advice - shelve them and instead get the biggest advantage that marines have - assault terminators (if you have the models)
Finally, you want to consider a librarian over the chappy for your HQ. Space Wolves are psyker heavy. You need some psychic defense here.
Also, you don't have very reliable AT. You need more meltas. Your land speeders can very easily be shot down after which, you really have nothing to deal with Land Raiders if he takes them. Plasma Cannons make for great TEQ-killing but horrible AT. I suggest to equip 2 of your tact squads with missile launcher + meltagun for greater flexibility.
Note that assault marines cannot take Razorbacks. And with 5-6-man squads with no power weapons, they won't provide much support in cc. My advice - shelve them and instead get the biggest advantage that marines have - assault terminators (if you have the models)
Finally, you want to consider a librarian over the chappy for your HQ. Space Wolves are psyker heavy. You need some psychic defense here.