What is the intended order—play through the story of Mass Effect 3 and then play the From Ashes DLC, or begin the game with the From Ashes DLC from the start?
With the nature of the squad member being such an important and critical plot point, it seems like his presence or absence would affect a large majority of scenes, and I can't imagine that the entire game dialogue is branched based on the DLC, so clearly the writers in most scenes must have either intended the player to have the DLC or not.
For example, am I going to encounter situations where people speculate about the Protheans while the DLC character sits idle without any dialogue written, or, on the other hand, are there really interesting and well-scripted scenarios over the course of the game that are dependent on having the DLC character?
Best Answer
You should complete the DLC as soon as you can after Priority:Mars.
You get a squad member Javik. But he will only be available after Priority:Mars.
IMO he is a very valuable squad member with very unique dialog options. I was able to do it fairly early in the game. His Dark Channel works wonders for me.
Adding Javik to your squad does net you some unique dialogue options when interacting with characters. (Not posting it here. But checkout Javik/Unique Dialog here.)
If Javik and Liara are on the mission Priority:Thessia, then that conversation adds a lot of lore, since at that point you are at a Prothean place where they posted a record of their attempt to fight the Reapers, as the Asari call it a temple and Javik is a Prothean.
One last note, you can not take him on Priority:Palaven.