Hello!
If you reach lvl 25 by Sunday, you will have 15 more days of Steel Hunter.
Keep in mind you can't lose ranks and that being 4x in top 15 players gives you tokens for the final mission - be in top 15 and get 2 tickets for Tank Festival thing.
Now, if you want to get those camo styles or other goodies and need tickets to unlock them and make your progress faster, I suggest you continue playing Steel Hunter.
You only need to be in top 15, which can be done in like 5 minutes per game max, if you hide and drive around and wait for people to kill each other. Then you drive into them/zone and die. Hop into your next tank and do it 5 times in total per day. Also, you will help other players progress faster because they will have one tank less to fight against - everyone gets something, I guess.
15 days - 2 tickets daily = 30 tickets (6 Dog Tag components, it comes in handy I guess).
15 days - 75 battles in total (5 battles daily) - around 30.000-35.000 silver per game at least (place 14 and 15 in game) = at least 2.5 million silver.
IMO, this is a good deal given the time and effort you need to put into the game. It's around 20 minutes daily, around 5 hours in total from Sep 1 - Sep 15.
So... that's it, I guess. Thought you should know if you didn't already.
GL, HF!