Help with Best Defense Achievement

[Blazur]

Trying to earn the best defense achievement, which involves destroying 4 hatcheries on hard in the mission where you need to survive against zerg for 30 minutes. Any advice on the best way to complete this?

Thanks.

[protoswarrior]

Use multiple rax with reactors and 2 tech lab raxes and pump marine+medic like crazy. I don't remember, but do you get the option of upgrading stim for marines before that mission?

If not, just make massive m&m and use 2 groups simultaneously cleaning up the north and west of the map. Use 3 bunkers for each bridge and build like 5-6 turrets with 2 scvs per bridge on auto-repair and 1 medic per scv pair. Defense-wise you'll be fine, while your main 2 groups are on clean-up duty.

Hotkey-rally your raxes to the entrance to each bridge and add them to your control groups as you get enough and keep reinforcing. I almost killed the 4th hatch that way before the timer ended. It was a first attempt as well. If you do it perfectly with very lil time wasted on base defense, you can very much achieve that.

Tell me how it went !

[Blazur]

Stim is not available prior to this mission, and my biggest problem is running out of time. I use 2 rax w/ reactors and 2 rax with techs for medics.

[TheRabidDeer]

I just attacked the southwest base. Kinda hard to get up in there, but just keep pushing and you will eventually get in. There were 3 hatcheries in there when I pushed, they tried to rebuild 2 more hatcheries and I got the achievement with like 5 minutes to go. I was kinda sad since the only building I lost was a bunker because I forgot I took all of my marines out of the bunkers on one side so I didnt get the other achievement.

[Maesma]

Since I was banging my head against this for like 2 hours trying to kill both zerg bases (North has 2 hatch, Northeast has 3 hatch and is much harder to get into).

Here is the key: Ignore the Northeast base. Ignore the refinery. Scrap the two lower bunkers off the bat and put 4 marines in each of the ones at the top ramp.

Upon spawning put down double reactors. When the first rebel group calls for help you should have 12-16 marines, go rescue them (dont forget to grab the gas pallet, then get your melee weapons research going) then run to where the second group will spawn and grab that gas pallet (and wait there) the whole time you should be making marines with any extra mins after you have an scv qued + a supply depo. Right after the second rebel group spawns move out on the north base from the west. kill the hatches then back out to where the 3rd group spawns, reinforce back to 30-40 marines. when it spawns go back into the north base and kill the hatches again for the achieve then fall back to your base (you should of probably of built a 3rd maybe even a 4th and 5th bunker at top of ramp. You should have about 10 minutes left to just macro up marines and put down a couple extra rax with reactors (you should have spent exactly 400 gas (100 from start 100 gas palletx3) on 4 reactors and melee and armor upgrades. Hope this helps others that didn't realize they will rebuild their hatches if you move out of their base.

[SuperKiller]

3 bunkers on each entrance, save allies, don't really attack bases until you have at least about 100 supply of units.

2 barracks with reactor 1 with tech lab is enough to keep your money low and production good. I upgraded marine weapon +1 at the very beginning instead of adding reactors since you can't keep up with marine reactor production that early anyway.

[userstupidname]

Yepp I did the mistake of just pumping waves of marines rather then just one doomball

[spychi]

I just got it
locked myself at the left side of the map with a M&M squad, pumped out more marines, pulled back to the second line, destroyed 3 hatches at the bottom left side, meanwhile I managed to have a very big army of marines and medics at the base, took them and I launched a full scale attack the top left side of the map, managed to destroy the 4th hatch
don't attack the spine crawlers until you get rid of lings, hydras and roaches, lure them out

[unentschieden]

Key points are to abandon the lower ground, you just need it for the normal achievement. Secondly never ever stop building, pump constantly and if you get to 200/200 you waited to long. Also lure the Zerg away from the crawlers, they will slaughter your Marines.

[Twilice]

I rushed through the north base as quickly as possible, that way I got less zergs attacking me. But I actaully used alot of save points because of the timed zerg attacks.

But I could try to attack the southwest base before the north. (I wouldn't recommend attacking the northeast because of superior higher ground and lots of towers)

The last thing I did was a suicidal attack where I pulled every unit away from the bunkers and steamrolled the southwest base.