Got my 5th slot, now what ?

Hey shagot

Congrats on your 5th slot! I wish you many happy games with more choice of how you want to get the job done

Tough choice indeed. Would definitely save for that Carnage ASAP. I'm sure @russell would recommend Cossack with ECU as one of your options, and he would have a point seeing you currently have no real beacon capper. I wouldn't buy another Griffin at this point as I would see what you win in the summer event starting on Tuesday. It must be a great feeling knowing that if you win a bot, you now have the choice to use it in your hangar right away!

Wishing you all the best mate  

Another RDB Griff. He's the most versatile bot in the game and gives you a lot more survivability on Canyon, Yam, Dead City, and Springfield. I would not get magnums - Leo is the bot I'd swap when you get your Carnage. Light slots are far less preferable to upgrade if Dashes become available for a static currency since they exclusively use mediums. Two of your Leo's pinatas can easily transfer over to a DB Griff later, so only level two of the three.

If you're concerned that you'll need a spot for a dash bot, don't level up the 2nd RDB past level 7, and focus on the tulumbas for than the pins. 

This is what I would do to your hangar:
Keep the Russian Griffin. That thing is the best midranger and possibly one of the best robot setups in the game and it allows you to support your team by dishing out tons of damage unless there are lots of Anciles around. If you are good, you will be able to stay in one Russian Griffin for the entire game and get 600-800K DMG. I wouldn't use 2 your hangar mainly because last second beacon pushes are important and the Russian Griffin isn't exactly a head-on assault bot.
Keep your Plasma Griffin to take out other Griffins and Rogs that are more common. Previously, I would have said to take it out, but the buff to midrange must have discouraged many players into using britbots with the exception to the Ancile Lancelot so the Plasma Griffin will be one of your best friends if you don't have a Rog.
Put the Orkans on another Griffin along with Pinatas to make it a Death Button Griffin and put Tarans on your Lancelot to make it a Thunder Taran Lancelot. The Death Button Griffin is the best assault bots and it's one of the best bots to take out enemies in a short period of time. The update that 'fixes' the backpedal of lights and mediums should make that a solid bot in your lineup. As for the Lancelot, use the Thunder Taran setup for now but save up for an Ancile for it.
Keep the Leo, but look into replacing it with a better bot once you have the resources for it, such as the Plasma Galahad or an Orkan Rog.

Congrats! With the event just around the corner I'd focus on getting that cossack to level 9 (too speed) to helo with event quests.

I'd hold off on anything else as dash bots + 2 new weapons on the way and good decisions made now may be bad decisions in a few weeks!

Under the normal run of things I would say Carnage all the way!

I'd add a beacon capper Cossack.

On many maps/starting locations you can open with it and quickly try to get 2-3 beacons, then let it die. Almost any weapon is fine, as well as an Ecu. Just make sure you eject it if reds just can't seem to kill you. This is especially good if you want Medal of Capture, sometimes initial 3 captures are enough to win it especially in Yamantau.

You can also leave it for late game, drop it when there is an unguarded red beacon or two you can go and capture. This is probably more useful for helping your team to win, if done at the right time (but make your team lose if done at wrong time, by giving reds bot advantage at the front line....). But I think it may cut into your chances to get battle reward Au more than dropping at the start of the match.

Edit: Of course this Cossack is of temporary use. If you want something with more long term value, get Stalker, Gareth (it will be good again if/when the upcoming weapon Scourge appears) or Rogatka. But the Dash Bot Mk1 is likely ti supplant these as top capper, so Cossack is a fine placeholder.