I don't mean it like that just telling him one nice thing is enough and then the help tips
When the bot is good I will tell him so. Until then I'll tell him things to make it better. It's not my job to make him feel good about himself, but to make him a better builder.
First off, if you won't rebuild your chassis and say things like "OH NOES IT WON'T FIT" there's no point in me helping you out with anything else. Rebuilding your chassis is the most fundamental aspect of bot building, and just putting parts in a chassis is the most inefficient way to build. Remember this.
The second thing is the weight limit. LW ~ 249, MW ~ 399, HW ~ 800. What the

are you doing with a 412 kg bot? It's easy enough to get down to a MW, just remove ALL the pinks and use ONE black battery. Instead of 4 redbird drive, use 2 HPZ or normal ztek drive. YES THIS WILL REQUIRE A NEW CHASSIS. Heck, this bot could be a LW if you used RAD drive.
Once you free up weight by making the chassis the right size (means close to NO empty space) then you will probably have more weight for weapons. You could double up the irons on the disc using extenders, for twice the damage.
Now for the popup. Remove the wedges on the baseplate extenders and put a DDT motor > 20 cm ROUND! extender > ONE small wedge. do this for both sides. Remove that horrible, inefficient, and ugly weapon system on the center DDT and use round extender with razors on them. Add another nifty to the left side of the robot opposite the one you already have, and remove the pink battery.