Greetings!

As the title shows, I am looking for answers on how to achieve the hidden achievements in the game. This also contributes to the other "Generals" who is also seeking to accompling this Hidden Achievements:

(Attack)

Boss, I Stepped On Something ------ Lose 500 pigments(soldiers) on land mines.

Strike! ------ Kill scouts with the Triangle Mercenary.

Difficult Start ------ ?


(Defense)

Ghandi? ------ Acquire several "S" grade after an enemy attacked your base.

United Colors ------ attack or Be attacked by All other colors several times.

Hold up ------ Acquire several "D" grade after an enemy attacked your base.


(Statistics)

Made in France ------ ?

Strategic Reply ------ Surrender a match once.


Thank You and please contribute your answers!