vehicles cant capture objectives
Read the
FAQ.
GS'd
GK Dreadnoughts and venerables may in fact capture objectives.
At 1000 points you really need to go either Drago plus all paladins or go for a cheap-ish
HQ and power armour troops.
The Dreadnought is a good idea I think.
Perhaps:
Brotherhood Champion with psybolts - 105
10 man Strike Squad with hammer, 2 psycannon and psybolts - 250
Razorback with
TL assault cannon and psybolts - 85
10 man Strike Squad with hammer, 2 psycannon and psybolts - 250
Rhino - 40
Dreadnought with 2 x
TL autocannon and psybolts - 135
Dreadnought with 2 x
TL autocannon and psybolts - 135
1000
Fair amounts of firepower, both
AT and anti-infantry, decent assault and you can combat squad and deepstrike if necessary to get to far-flung objectives. Obviously with no
GM the dreadnoughts won't be scoring but you'd potentially (with combat squadding) have 4 scoring units anyway.