Two aspects of "Kat" Katczinsky's personality are revealed in chapter three of All Quiet on the Western Front by Erich Maria Remarque. First of all, he is resourceful. If anyone needs or wants something, Kat has an uncanny ability to find it and then figure out a way to barter or trade for it. In this chapter, for example, he gets beef and beans for his friends by trading pieces of parachute silk.
The second aspect of Katczinsky highlighted in this chapter is his philosophical nature. After being in war for a time, he believes he knows how to bring this war to an immediate halt. He suggests that all if all the commanding officers were treated the same way (and to the same supplies) as the enlisted men, the war would be over almost immediately.
"Give 'em all the same grub and all the same pay and the war would be over and done in a day."
While there is not much common relief in this novel, Katczinsky also offers a bit of levity in an otherwise bleak novel.