Foot Slogging Space Marines

While trying to help out someone on a blog site, I came up with this army list. What the person was looking for was an army list that was not the usual mech army list, and was still competitive. Together we came up with this army list.

HQ
Shrike - 195

Troops
Tactical Squad - 210
10 men, meltagun, lascannon, powerfist
Tactical Squad - 210
10 men, meltagun, lascannon, powerfist
Tactical Squad - 200
10 men, meltagun, lascannon, power weapon

Fast Attack
Assault Squad - 250
10 men, powerfist, meltabombs, plasma pistol x2
Assault Squad - 250
10 men, powerfist, meltabombs, plasma pistol x2
Assault Squad - 235
10 men, powerfist, meltabombs, plasma pistol x1

Heavy Support
Devastator Squad - 150
5 men, x4 Missile Launcher
Devastator Squad - 150
5 men, x4 Missile Launcher

Total - 1850

What do y'all think? This army is mainly buit around Shrike and the three assault squads, who will be trying to get into close combat turn 1.