Got a game in with the list on thursday night against dptdexys and his codex marines
I took
Great Gargant - Boss, Mega Lobba, Gatling Kannon, Ripper Fist, Flakka Dakka, Power fields
Gargant - Ripper fist, 2x Gatling Kannon, Power Fields
Gargant - Ripper fist, 2x Gatling Kannon, Power Fields
Supa Stompa - 2x Soopagun, Mega Chopper, Power Fields
Supa Stompa - 2x Soopagun, Mega Chopper, Power Fields
Killa Kanz
Killa Kanz
Fighta Bombas
Dptdexys took (I think)
Scouts
Scouts
Terminators - Supreme commander
Terminators - Chaplain
Predator Annihilators - hunter
Devastators
Strike Cruiser
Landing Craft
Thunderhawk
Thunderhawk
Thunderbolts
Thunderbolts
Setup

I garrisoned both sets of Kanz on overwatch, one on the blitz to keep them out of trouble, the other on my right flank, I deployed the gargants in a clump to hopefully BM any daring air assaults that might come in
Turn 1 - Marines win strategy roll and force orks to go first
fighta bombers fail to go onto CAP and stand down

strike cruiser pie-plates neatly land on one killa kan mob, killing 2

Devs retain and engage, breaking the kanz in 2 rounds of combat, one kan manages to snip some heads off before dying

Great Gargant doubles forward, pushes it and catches fire

Tbolts strafe second kan formation who save two hits

Kanz attempt to marshall, they fail but remove blast markers

Scouts double

Supa Stompa doubles and shoots the devastators placing a blast marker

tbolts strafe broken kanz, wiping them out

Gargant doubles towards scouts, pushes it and catches fire

Scouts double up and plink the gargant

Supa stompa doubles forward and hits the scouts, killing a stand and a rhino

Landing Craft lands and crossfires gargant, stripping 5 shields

Gargant pushes to double into eye of mork range and shoots the landing craft, misses horribly, OGBM now out of activations

Terminators land and shoot the gargant which saves both hits

Terminators land and shoot the gargant which saves both hits

End phase - Great gargant takes a point of damage from the fire, stuff rallies etc

Goff gargant gets a second fire and 2 points of damage....

Deathskull gargant puts his fire out! huzzah!
Turn 2 - marines win strategy rolloff

Terminators combined engage and destroy goff stompa, losing one stand in the process

Preds retain and sustain on deathskull gargant in a crossfire, breaking it, he runs off in tears crying about being bullied

Goff Gargant engages intermingled terminators, killing many for the loss of a few shields, the two characters peg it

Supa Stompa fails to sustain, shoots devs, kills one and breaks them

-SCENE MISSING-
Kanz go back on overwatch

Tbolts refuse to play fair and shoot the poor defenceless wee kanz

Fightas strafe the scouts, killing a scout and a rhino, they withdraw

The camera decides to take a photo by itself.... look at that parqetry flooring, lovely

Great Gargant seeks revenge on the predators and kills one, yeah, take that

tbolts break kanz

Landing Craft engages and wipes them out

pic missing, thunderhawk lands and collects broken terminator characters, supcom rallies, chaplain fails
End Phase - Goff Gargant gets
another fire

Great Gargant continues to smoulder

Dethskull gargant clearly has a lot of asbestos in his construction as his fire goes out again
Turn 3 - Marines win strategy
Start of Turn

Pic missing but the preds crossfired the deathskull gargant again, killing it
Goff Gargant shoots scouts (I think)

Great Gargant doubles back to his T&H objectives

I think the supa stompa got hit by planes and lost his shields? I can't remember

yup I do remember, all 4 shots from the planes hit....

Stompa lumbers over and shoots preds, taking another one out

Tbolts plink the great gargant

Fightas fail to CAP again

Thunderhawk lands and shoots great gargant

Landing Craft Engages gargant (because the marines had already won 2-0 at this point) and despite taking two points of damage and the gargant being +3 on resolution, WINS THE RUDDY COMBAT BREAKING THE GREAT GARGANT

Great Gargant Scuttles off into marine table half but promptly fails to rally

Pic missing but 2nd thunderhawk drops supcom on orky blitz getting blitz, T&H and TSNP into the bargain for a nice 3-0 win
ThoughtsAnother very skewed matchup, but the gargants were out activated and picked apart, with 2 scout formations on the table, there was nothing much to really rush towards, I could have doubled the supa stompa to guard my blitz, but he could have been broken through blast markers so I still would have lost
Dave and I worked to ensure I didn't make too many cockups and I felt my choices were sensible given the circumstances.... perhaps next time I should march all 3 gargants to the centre line objectives T1, then put them all on overwatch T2 in a clump....
I really like the OGBM list from a fun POV, it really captures the clanking gargants wandering around on fire feel, but I just can't see it as a particularly powerful list if your opponent plays sensibly against it (which is honestly how I feel about the AMTL list too, just to a lesser degree) the extra activation from taking the cheap gargants didn't really make much of a difference in this game