Dealing with Jump infantry as SM

[SiesmicSquall]

Whats the most effective way to deal with Raptors, ASM ,StormBoyz as SM.

Thanks

[Ace of Swords]

You don't, just have your own asm and manouver better than your opponent, don't get your units jumped on in blobs (split so that only 1 of your units will be caught) and try to react fast enough to make him waste his jumps.

[egewithin]

+1 on Ace

Or you can get double devs.

[[EL] A Paige (of AT)]

if you fully upgrade two scout squads, you can make your opponent regret his decision. If the jump squad jumps on your scouts, do not retreat. Bait their attacks, and go for that juicy squad wipe.

If you are not confident enough with your grenade abilities, just shotgun blast them away and kite. If the squad jumps on your supression, move it back and wait three seconds for them to finish their jump animation, knock them back with your shotguns to apply both the knockback and supression.
OR move your devs back, and place a grenade just behind them as the jump squad pursues.

Double devs can work, but you need to be wary of positioning and that double jump against assault marines.

Note: these are tactics I use and are only really viable with double scouts.

[Paranoid Kamikaze]

Double Dev, Single Dev and 2 shotgun Scouts, or your own ASM's if against SM. With the single Dev, keep the two shotgun Scouts behind it and disrupt the jump troop so you can re-setup. You can also just keep your army in-front of the Dev and when it gets jumped just move it backwards without retreating to take that unit out of the fight as it will have to continue on chasing you. For commander specific counters you could use Battle Cry, Bionics, or Purification Rites.

[Torpid]

Double dev, 2x sniper scouts wrecks asm/raptor plays. Not so hot vs stormboys though. Shotguns are much stronger vs them.

[SiesmicSquall]

Thanks. I remember using double devs back in vanilla when ASMs could only jump once. But now its just seems too micro-intensive - especially vs 1 point-click ability. Double shotgun scouts would have been my next thought, il give that try next.

[egewithin]

Get a Dreadnought.

[Adeptus Noobus]

Your hero plays an important role here. If you are the FC, equip him with the Power Sword and go to town on the ASM/Raptors. If you are the Apo or TM you have to do as Ace said. Apo can also get Purification Rites for the knockback on heal and the TM could get Bionics.
Come T2 the latter also have access to Power Melee axes which drain Energy on hit, which hurts ASM a lot since they need their energy to jump out of trouble again or to perform the merciless strike. Same goes for the Raptors. A Dreadnought would be a poor choice imo since SM and Chaos can deal with it so fast. Also, since ASM/Raptors are already fielded, the snare is just one ability away.
I have successfully won this matchup by getting the Power Sword+Alacrity+Standard and a Libby + Plasma Tacs. FC destroys ASM, Libby takes on Tacs and your ASM take on setups or whatever is left or initiate to help the Libby get into combat. Your Libby can further help out with Veil of Time and Smite to further put the pain on your enemy. Smite works very well against Chaos and SM alike, since it destroys Tics (put FTE on him for the lulz) and it softens up Tacs quite a lot. The inspiration buffs also come in very handy as the Libby inspires on kill and the Standard constantly buffs your damage and on top of that you also have Battlecry available. The damage output should be skyrocketing very fast.

[Dullahan]

Shotguns and Hero abilities. (i.e Battlecry, Purification Vials, Bionics.)