Is this different than Tanki Birthday sale?

I added them up and it turned out to be around twice as much, just wanted to make sure it wasnt human error. Thank you

Im pretty sure I know the answer but to be sure: For example, if i were to buy all micro upgrades for smoky m0, would the total price be equal to just buying m1 smoky? Thank you

I have a question about railgun and I could not find a definite answer anywhere so ill just post a question here: How does railguns shot lose damage? I know that it doesn't lose damage over distance, so how does it lose damage? Also, how do you make your shot have the maximum damage? Thank you