I'm a terran main and i'm scoring a lot of wins against you guys with this build so i'm writing this guide. I'm considering that you send a 17 scout and going for a cliche hatch gas pool build.

2 rax

Scout: Orbital and gas

Response: send 2 drones to your natural because a scv will arrive at your natural to build a bunker soon, then pull 6 drones(8 in total) and start killing his marines one by one when your queens are out the rush is over.

Additional notes: this can be another cheese, rarely used by low level players, this is a low commitment attack so expect a follow up and don't build a spine neither a excessive amount of lings, if you killed all his marines and he lifted his rax send your lings across the map.

3 rax

Scout: Only a orbital, no gas

Response: Keep your 17 scout at his base to see if he is going for a mass worker pull, send 2 drones to your natural because a scv will arrive at your natural to build a bunker soon, then pull 6 drones(8 in total) and start killing his marines one by one he will never build a marine deathball, build a single spine, if he fails he will probably goes for a mass worker pull in this case dump your minerals into spines when his workers are at half of the map dump the rest of your minerals into lings.

Additional notes: the most popular proxy marines build

4 rax

Scout: Nothing, no orbital and no gas

Response: Cancel your natural and ling speed, start a spine in front of the ramp(and not in the back of your mineral line), roach warren, 2º gas then a 2º spine, worker pull 7 drones to buy time for your spine to finish, after holding him down just A move him you will have gas and tech and he not, stimless marines do shit against roaches, and he will be far from getting a factory.

Additional notes: He will hit you with 5 marines(or more) and get a deathball soon after, and your natural won't even be full of creep, and this hit so hard that you need a spine to survive, your natural will be impossible to defend