Problem during loading last check point

[S.T.R.E.L.O.K.]

I have created the map in Gears of War Editor, but I have problems with it: when the character dies I press "Load Last Checkpoint". Editor crashing, and gives out the following message:

Problem signature:
Problem Event Name: APPCRASH
Application Name: wargame-g4wlive.exe
Application Version: 1.0.3340.131
Application Timestamp: 4733230e
Fault Module Name: wargame-g4wlive.exe
Fault Module Version: 1.0.3340.131
Fault Module Timestamp: 4733230e
Exception Code: c0000005
Exception Offset: 000d5c37
OS Version: 6.1.7600.2.0.0.256.1
Locale ID: 4105
Additional Information 1: 43c2
Additional Information 2: 43c2b852ba29bef30ef98d4c12d2ef67
Additional Information 3: 6796
Additional Information 4: 6796ef180daa2b3316a61ea15ff7f662

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Please tell me what i need to do to make a complete-working multiplayer map? Please send me (or tell how to create) the simple example of WORKING multiplayer map.

[bmbr1990]

you can't load last checkpoint in editor....

[NEVERISM]

Please tell me what i need to do to make a complete-working multiplayer map? Please send me (or tell how to create) the simple example of WORKING multiplayer map.

Checkpoints in a multiplayer map? Need further clarification.
bmbr1990 is absolutely correct, must be in-game for checkpoints to work.