There is 3 out of a maximum of 30 BSAA emblems to collect in chapter 6-1 and 1 of the treasures. You are able to replay a level at any time, shoot one and then exit and it will record that you have collected the emblem, you do not need to reach a check point.However if you quit out then always choose to save game.
BSAA EMBLEMS
1. As soon as the mission starts do a 180 turn and look at the very top of the silohette of the radar. It's very small and needs to be shot with a scoped rifle or RPG.
2. When Sheva is trapped in cage fire a grenade into the container (you facing NW).
3. In left glass cabinet next to plant displays.
TREASURES
Topaz (Oval) - Chapter 6-1 - Climb up all the ladders in the beginning of the Chapter to the very high vantage point and Shoot all Majini in the distance on top of the Crane and the guy near the switch so Sheva will not be caught later. The guy on the top left will drop the Topaz. In the area where the cage would normally trap you, climb up the Ladder and it should be right in front of you on top of the container.
Diamond (Marquis) - Chapter 6-3 - YOU MUST BE CHRIS IF PLAYING SOLO. During the final fight with Wesker in the volcano, right after Wesker appears for the first time, turn around and head towards the bridge that will collapse. Before stepping on it though, shoot down the rock just past it on the right that is the same colour. Now when you fall through the bridge, turn to your left and jump over the rock to retrieve the diamond.
