Roll part 15, and use paper and roll wrap around it and glue to reinforce the part, because this parts will be housing moveable part, so it must stiff and hard. You can use power glue (instant hard glue) to make it more stiff and faster to cured
Assembly the main torso part (3), attach part 9,10,29 in the last. Reinforce part 10 with 1 mm card board (51). Reinforce part 11 and 13 with also 1 mm carboard (50). Do the same with part 29 as part 15, and make it stiff.
When assembly part 27 and 24 don't forget to attach part 48
Yellow dot means fold it and glue the flap to the itself back, don't score the fold lines. The function is to add thickness
Attach part 42 first before attaching part 23. You can choose the visor color, red or black. Double part 7 and 8 to add thickness.