So you might be looking at this because you're perhaps bored or the more likely answer you are looking for it that you want the "Win in the Blast game mode steam Achievement" well I'm sorry to say that I will not be able to resolve those for you however I want to share something else extra special.

Some time ago whilst playing I realised there just isn't enough players anymore to make a number of the game modes possible to play however when quick-play searching for a match I would often get put into a Blast match with 1 other person waiting. Given time there would be 4 people which would begin the game. Very quickly people would realise that this is in fact a small TDM and quit so that there would only remain me and 1 other person. Now I like messing around and playing a simple 1v1 as much as the next however this changed when one day someone typed and said they were only playing Blast for the Steam Achievement to finish off the game for them.
There is 2 ways to get this victory. 1 is to deplete all 100 lives from the other team and the other is have everyone on the opposite team leave therefore giving you the win by default. Here it became obvious to me that there was only 1 thing to do. Which was to waste as much time as possible, whilst abusing rat like behaviour to ensure that they cannot get any wins which by not let them win trapping them forever in Battlefront 2's clutches. 100 kills is a lot to do for a 1v1 and most people won't stay unless they are winning or need to stay to try their hardest for the 100% completion.

Therefore I have spent near 50 hours since queuing for blast in my region ratting the blast 1v1 games and making people either leave or beg in chat for their freedom in hopes of a Victory screen.

Palpatine once said during a Clone Wars episode "There is no Mercy" and that's exactly what I am now promoting. Go forth and hold hostages in Battlefront may they level all their star cards to max and yet still find no safety or release from Blast queue. Thank you for allowing me to waste your time like I waste many others.

(I won't tell you what I do but know that it's very easy to abuse the tiny maps in blast)