Thanks Parfait! You can get a Cormorant for EC now
Already did...they finally updated the game a couple of times, and have new P2W content for sale...but the flyer, with Tormentors, is sweet!
I think that paying as with War Robots will push you up the leagues faster. However upgrades in War Robots are often percentage based compound increments and cost lots of Ag. Whereas in BoT, Tier 1 upgrades are cheap and give a big boost. Tier 2, more expensive, a medium boost. Tier 3, very expensive but only a small % boost.
For that reason, you spend in War Robots for power. You spend in BoT for experimentation and customisation.