ACHIEVEMENT - HOW TO UNLOCK Serious Beginner (5 points) - Complete any level in single player. Game Master (15 points) - Complete the game. Serious Sam (25 points) - Complete the game in single player on serious difficulty. Look, It's a Secret (20 points) - Find at least 80 secrets in single player. Cathedral King (30 points) - Complete The Grand Cathedral level on serious difficulty without dying or loading. Coin-op Co-op (15 points) - Complete the entire Coin-op coooperative game on normal or higher difficulty. Capture The Flag Beginner (5 points) - Win a CTF match with at least 2 players on each team. My Burden Beginner (5 points) - Win one My Burden match with at least 3 players. Beast Hunt Master (20 points) - Win a Beast Hunt match on all game levels. Survival Beginner (5 points) - Earn at least a bronze medal on any level in single player Survival. Deathmatch Master (20 points) - Win 100 deathmatch games. Sam I am (35 points) - Accumulate a total of 100,001 enemy kills and frags combined.