Killing ghosts 1000 blood counts as killing, 10 experience; Infect a mercenary, as above; Killing a ghost is equivalent to killing 2000 blood, increasing the chips to win MVP; Grab more boxes and get MVP；; The more players, the more experience. Suggestion: Because biochemistry takes a long time and has the most experience in MVP, it is recommended to start from scratch every time and strive for MVP. Words of wisdom: Go where there are many people. (word has)