17. Survival Level: Cobra

Level Medal 1: Kill 400 Units with an Artillery Turret

Level Medal 2: Kill 250 Infantry with Anti-Armor Turrets

The layout for this battlefield is similar to the previous one in that it is largely pathing oriented as far as your defensive strategy is concerned. That said though, the difference in the attacking units is remarkable and deadly.

The early waves for this level are a mix of Infantry and Armor, which means that The Kaiser is certainly at a disadvantage from the start. So yeah, this is going to be one of the levels where you are going to find that some Heroes are not equal to others, and where The Kaiser is not even close to equal at all!

Level Medal 1: Kill 400 Units with an Artillery Turret

Pretty easy to understand and easy to work out your strategy - which is to kill Infantry with the Artillery Turret. Obviously this is the harder of the two challenges only because (1) getting the money together to place the Arty Turret AND protecting your Toybox are almost mutually exclusive goals, and (2) effective using the Arty Turret while also defending your Toybox is very challenging at best.

Level Medal 2: Kill 250 Infantry with Anti-Armor Turrets

This second challenge is far less troublesome or complicated than the first save for the fact that, again, you need to defend the Toybox while you get a basic defensive screen in place and upgraded!

That said, as long as you are making the Anti-Armor part of that defensive screen, this should be relatively easy to unlock.

Score Run

Being brutally honest here, The Kaiser is not the best Hero to use for this Survival Level in part because it probably has the least effective units to defend against Cobra. Just saying...

But remember that there is no real loss here - this is after all Survival Mode, and not a regular level. So have fun with it, do not stress it, and only really get serious with whatever Hero it is that you are using to complete the Achievement for all of the challenges, right? Right!