Board Thread:General Discussion/@comment-29914576-20181109123947/@comment-25404524-20181113010722

Okay, now I have gotten access to that computer that I stored those files. Now I can elaborate about each design of each of the upgrades up to Tier-4.

For the unupgraded Mortar, I believe the final design would be similar to the BMC Mortar Monkey pose, even though I got like two images that were very similar. But both had only one yellow stripe on the mortar weapon.

Path 1:
 * Bigger Blasts gains a light grey mortar weapon with three yellow stripes. The monkey is wearing the original helmet (i.e. the green helmet with a yellow private's symbol that BTD5's Mortar uses). The monkey jumps and pushes a grey lever forwards simultaneously. The blast appears similar for some reason.
 * Bloon Buster gains a light grey mortar weapon with two light-green stripes on the bottom part of the nozzle (not sure if right term, but I think you know what I am referring to). The Mortar Monkey is now wearing green goggles that look similar to the goggles from the Engineer from Team Fortress 2. The monkey is also carrying a huge version of the original mortar shell.
 * Shockwave (I believe that's the name) now features a weapon what appears to look like The Big One's original weapon. The difference in the weapon is that I don't see the radioactive symbol (though it could be just hidden from sight), as well as that the explosion now features smoke coming out. The monkey now features what appears to be a black-and-yellow Glue Hose suit, with yellow as centre stripe and black on the outside. Again, he wears Glue Hose goggles inside his suit. He is looking upwards checking the view, possibly looking at the shockwave ahead of him.
 * The Big One color scheme is now mostly green and black. Green for radioactivity. Mid-grey suit with black centre stripe is what the monkey suit wears. He carries himself near the nozzle of the mortar with one hand holding onto the nozzle and one hand holding a big lime-green radioactive-symboled mortar shell into a humongous black mortar nozzle. The nozzle is suspiciously radioactive green in color. The mortar weapon is black with two green stripes.

Path 2:
 * Faster Reload wears probably some cross between a beret and a cap. It's some flat cylindrical cap, but not sure the name for that. Color scheme for cap is still the same, though under the cap is dark grey. The mortar weapon base is now dark grey, and the lever handle is yellow with red tips. Mortar Monkey pose similar to Bigger Blast.
 * Rapid Reload features the monkey pointing outwards to the right from the left, with the mortar weapon facing the right. The mortar weapon is now dark grey with two yellow stripes on the middle of the nozzle. The monkey now wears a capped beret, similar to the BMC Artillery Battery's hat. He also wears a darkish-green buttoned shirt.
 * Heavy Shells (I believe I got this right) features three mortar shells, just as I would've predicted of the Tier-3 Path 2 upgrade. The monkey is now jumping and aggressively about to press the red button on the activator remote that he is holding. Mortar weapon similar but spread into three mortars in an equilateral triangle formation. He wears a grey capped beret and wears a dark grey military official's suit. To me, that suit looks somewhat naval, since the white shirt and black tie beneath the blazer reminds me, combined with the other clothing, reminds me of the navy for some reason.
 * Artillery Battery features three exploding mortar nozzles in a straight-line formation. The monkey is standing up straight, looking upwards. He is seeing above the sky as the explosions erupt, as well as holding that same activator remote from the previous upgrade. His beret is now white.

Path 3:

(Probably my favorite designs, especially Signal Flare)
 * Increased Accuracy features a mortar weapon that is similar to the original BTD5 Bigger Blasts design, except the tip of the nozzle is yellow, the flame is red, and the main mortar is green. The monkey's hat is now red with a red flame symbol, and he also wears these kind of communication earmuffs with microphone. Pose is similar as for all Tier-1's. Lever is still grey.
 * Burny Stuff now features a flames along with smoke for the explosion. The monkey is calling through the earmuff microphone. Tip of mortar is now red, though there is still a bit of yellow beneath too. He also wears grey gloves.
 * Signal Flare now features an almost fully red flaming design. The monkey now wears red safety goggles. He feels really chill, probably feeling secure with his awesome mortar he has got. The mortar nozzle is now shaped like a wide hotsauce bottle. The base of the mortar is now grey.
 * Shattering Shells (I believe that was the name) features a yellow flame design on the mortar. The monkey's hat now has a yellow flame symbol. The base of the mortar is now grey, though it is glowing yellow. The monkey is now feeling the power, having noticed his clenching his arms and his smile, though I cannot see his eyes due to his goggles.

I don't know what any of the Tier-5's had because the I suspected all the Tier-5 designs were unfinished.