How to get the Mega Hertz achievement easily

A simple guide on how to get the Mega Hertz achievement nice and easily in the early parts of the game. (I apologize in advance for the tiny pictures and weird formatting, this is my first guide)

Step 1:

Simply play through the chapter "Unforeseen Consequences" as normal until you reach this point: https://steamuserimages-a.akamaihd.net/ugc/797618883350393912/5D6D12ED629EFB911C6CABA9DAF9A816160A4CF4/?imw=256&&ima=fit&impolicy=Letterbox&imcolor=%23000000&letterbox=false

It is VERY important that you do not harm the barnacles as they are important later, just bait them with the barrels and continue on as normal.

Step 2:

Get the scientist to open the security station and grab the grenades in the armory.

https://steamuserimages-a.akamaihd.net/ugc/797618883350394785/0EC6B5B39D123F892AC6FB792A0ACF6CDC26373C/?imw=256&&ima=fit&impolicy=Letterbox&imcolor=%23000000&letterbox=false

Step 3

https://steamuserimages-a.akamaihd.net/ugc/797618883350396845/B191C2A587A6732293D07AAC98FA43958E644B28/?imw=256&&ima=fit&impolicy=Letterbox&imcolor=%23000000&letterbox=false

Head back to the area with the barnacles and just easily throw in a grenade into one of the tentacles blowing up all 5 and there you go, you now have Mega Hertz.

[Cosmonaut]

Neat

[DOOT]

I know, but just chuck a cooked grenade at the baby headcrabs and done.

[Cosmonaut]

@newguy I made this before the gonarch beta came out

[DOOT]

that works for certain

[DOOT]

use gonarch

[Dragunov]

I guess there are 7 at the ceiling

[Cosmonaut]

@Dragunov Thats strange, i'm sorry to say I don't have any insight that should have worked.

[Dragunov]

Doesn't work here, I cannot get the achievement and they were all alive and six of them died with one grenade