In online gaming, how would you exhort a Chinese teammate to die gloriously?
Chinese have many phrases for "good death" like 犧牲, 捐軀, 就義, 成仁, 捨身, 捨生...

Examples:

"去壯烈犧牲吧!" (Go, go heroically sacrifice yourself!)

"去英勇捐軀吧!" (Go, go bravely give up your life!)

"去光榮戰死吧!" (Go, go gloriously die in battle!)

"去慷慨就義吧!" (Go, go gracefully meet your doom for your allegiance!)

"去捨身報國吧!" (Go, go give up your life for your country!)

"去殺身成仁吧!" (Go, go give up your life for honor!)

My choice:

"去捨生一戰吧!" (Go, disregard your life; forget about death and fight this one battle!) 

捨生忘死 disregard life; forget death