cl_updaterate 128 ;
cl_cmdrate 128

first copy this :

bot_kick ;
sv_cheats 1 ;
noclip ;
sv_infinite_ammo 1 ;
sv_showimpacts 2 ;
ammo_grenade_limit_total 7 ;
mp_warmup_end ;
mp_freezetime 0 ;
mp_roundtime 60 ;
mp_roundtime_defuse 60 ;
mp_limitteams 0 ;

and then this :

mp_autoteambalance 0 ;
mp_maxmoney 60000 ;
mp_startmoney 90000 ;
mp_buytime 9999 ;
mp_buy_anywhere 1 ;
mp_restartgame 1 ;

just copy this all and put in console and press enter.

for granade trajectory : cl_grenadepreview 1

additional :

cl_showpos 1

give weapon_tagrenade
give weapon_healthshot

sv_cheats 1
cl_weapon_debug_show_accuracy 2
weapon_debug_spread_show 1
cl_crosshairstyle 2
cl_weapon_debug_show_accuracy_duration 500