if you want to just add checkpoints to a map, use this https://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2925384863

if you're making a map:
download the fgd here https://drive.google.com/file/d/13IFptKuaUXv2hRNeQiaKgDNtpiuSOkzY/view?usp=sharing and add it to hammer
place trigger_multiple ents where you want the checkpoints to go
place a single gmod_runfunction ent, give it a name and set the FunctionName to "HitCheckpoint"
make the triggers output OnStartTouch, target the gmod_runfunction ent, set via this input to RunScriptInteger, and set the parameter to the checkpoint ID (starts at 0 for the start/finish line, increase by 1 for each checkpoint in sequence)

引用自 figardo：

if you want to just add checkpoints to a map, use this https://steamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2925384863

if you're making a map:
download the fgd here https://drive.google.com/file/d/13IFptKuaUXv2hRNeQiaKgDNtpiuSOkzY/view?usp=sharing and add it to hammer
place trigger_multiple ents where you want the checkpoints to go
place a single gmod_runfunction ent, give it a name and set the FunctionName to "HitCheckpoint"
make the triggers output OnStartTouch, target the gmod_runfunction ent, set via this input to RunScriptInteger, and set the parameter to the checkpoint ID (starts at 0 for the start/finish line, increase by 1 for each checkpoint in sequence)

Thank you! If you play tf2 sometime, i will pocket you (Becouse im MEDIplier).