i play hardcore

1.G36C red dot/acog (depends on map)
deagle(great for hardcore)

2. bandolior
3. slight of hand(i have a nasty reloading problem that usually gets me killed)
4. deep impact
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1.m4oa3
deagle

2.c4

3.uav jammer
4.iron lungzzzzz
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1.mp5(silenced)
some silenced pistol

2.3x stun or bandolior
3.uav jammar
4.deep impact or steady aim