There’s No Shame on Playing by Heart
Stratagems are the core of Helldivers’ gameplay; they are your most important resource and, more often than you’d like, they will save your skinny ass and your whole planetary incursion. The thing about them is that when you are in a hurry and you need to use something fast, getting the sequences right can be a very expensive pain.
Let’s say you ran out of ammo, or you need to call in some reinforcements so your dead mates can get back into action; you suddenly need to hit a series of keys really fast while avoiding enemies. You are pretty much done for, unless you can actually remember the damn sequences. Well, you should. It’s a life saving capability.
Of course some of them you will remember soon enough, since you pretty much use them in every mission. However, the most important ones are often the ones you use the least, and also the longer ones. There’s no harm on learning them as soon as possible so you can be the best helldiver out there, and a savior for your friends.