Use the cstrike module:
Code:
//cstrike.inc
/* Returns 1 if user has a defuse kit.
*/
native cs_get_user_defuse(index);
/* If defusekit is 1, the user will have a defuse kit.
* You can specify a different colour for the defuse kit icon showing on hud. Default is the normal green.
* You can specify an icon. Default is "defuser". Set flash to 1 if you want the icon to flash red.
*/
native cs_set_user_defuse(index, defusekit = 1, r = 0, g = 160, b = 0, icon[] = "defuser", flash = 0);